SCIENTIFIC ABSTRACT MEN, A. N. - MEN, J.

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December 31, 1967
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SCIENTIFIC ABSTRACT
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KOMEY1w, Ylio A,; I, ., p R nil, ~i I i h4 -J9 '-verd'ovs~-`y in; -i M, 5. JL 631763-65- 4~ PS0I8I088_______ 4 ion of the. solid phaseg in am equilibrium. had: f Ia Orig. ar3figures, '9 Vrmu So -A 1 lk-c!.SOCTAT 011S.- Inatitut metallurgii) Sve,rdlov sk 014tallurgy Institute) - 'T Me 1 SUIM -ED' c64 ENCL: -SU B CODE T-D " - - ' - _ n - -SOV: -004f 110 Mr OTHER: 002~, -3 _ BRAU13, S.Ta.; MEN', A.V.; LZBEDEVA, O.M. Experimental at -of tuning-fork filters and some aspects of their theory [in 4Linian with summaries in Russian and English]. Ukr.fiz.zhur. 2 no-3:274-291 Jl-S '57. (MIRA 10:10) l.Inatitut radiofiziki ta, elektroniki AN URSR. (Zlectric filters) SOV/142-58-4-5/30 AUTHOR: BraudeY S.Ya., Men', A.V., Ostrovskiy, I.Ye. TITLE: A Travelling Wave Antenna with Variable Zero rlece~tion Bearings (Antenna begushchey voiny s reguii;ruyem,.-mi napravleniyami nuievogo priyema) PERIOLICAL: Izvestiya v-ysshikh uchebnykh zavedeniy - hac;Jctekhnika, L 1J581 Nr 4, pp q15-41_1 (USSR) ABSTRACT: The paper discusses a system of radio reception antenn- ae that enables L or more sourcesjof radio disfurtance coming from different 0-irections)to be suppressed. The system was tested experimentally. The antenna system proposed by the author consists of:(l) Certain single- wire antennae, piacec! (low) over the earth, which are connected with the receiver input by a special phase rotator. (2) The paper aiso examines the working principle of a simple antenna system of this type, consisting of 4'r parallel antennae, connected by a phase rotator. Regarding (1) the zero p oint can be at Card 1/3 any value of angle (P (angle between the linc of inri- SOV/142-58-4-5/30 A Travelling Wave Antenna with Varlabie Z*Iero iiece,tion ~earlngs aence of' the ground wave ana wire axis 01 tne a,rtcnna) on the path of' the corres~ondinr search for ~-.ng_Le CI-1 with the help of a phase rotator. This characteristic of the antenna systEm can be usea both for investi- gating radio disturbance and for direction finaing. Regarding (~_), this aiiGws two Qisturbunces 1'rom cif- ferent directions to be suppresst-cl. Cieari-,-, the principie on which the 4-antenna system i s based (L), can also be utiiizec; to sui~,_ress 4 disturbances, re- quiring 2 four-wire antennae in series. The experi- mental tests of the qualities of this antenna wt-re made on C'-,- and 4-wire antennae. The autnor gives technical data i'or the goniometer ana the phase rotator. The latter allows - in the wave range 6.7-E- 1.3 - phase rotations ol' high frequency osciliations within the range zero-360'with transmission factGrs of u.3-u.7. The reiation between the rotation angle of the phasE rotator rotor ana the cis~,lacement of' the high frequency phases was racticaliy iinear. Exper- Card L/3 ience in using a four-wire antenna snoof_-(, that uurinE SOV/142-58-4-5~/30 A Travelling Wave Antenna with Variable ~_ero heception i~earlngs the day this antenna Lnsures stabic suppression of the two disturbances. At night it is more Gifticult to locate the cirection of' " disturbance ana even this was possible, suppression was not stabie. An antenna was testea exierimentally with one or two adjustable zero jcints. The qualities describea are, effective i'or th(-. rEce,.tion ot' "surl'ace" wave-, anc; non- effective for space waves. There are ! gra,hs, 1 circuit diagram, i diagram and L reierences, 1. of which are Soviet anc 1 American. AS"JOCIATION: Uchenyy sovet instituta rac~,Jofiziki i clcktroniki A,N USSR (Scientil-ic Council of' the Institute of hacio Physics and hlcctronics, Academy of' .5ciences, Ukrainian SSR) SUBMITTLD: January 1~)EB Card 3/3 A- JV 7 a B...km A.- 4, IL CEKILKI P&"PWTPASINKS FAAFAWAS PT- A. (c 10 A. 12 Ocml ffv- L rr&.d A. L gr~ r. IL aIt A- (c 12 to 15 qtcm) 0 --m V- F- A. L Iff gma (c 22 4. L .0,m oa"t" Ew Um Comsend" NOUN of UR falmllfts Tbaloozft,", al*Z*" 4t ,.", MAg,.Wtg an& Ilmala-EmL CammalmUmn to. A. S. la~v (US=). Mw~, 5-12 Z~. 6 7 5 -j I SOV/141-2-3-8/26 AUTHORS: Men', A.V.A.Gorbach, V.I. and Braude,_S.Ya. TITLE- The Effect of the Separation Boundary on the Fluctuations of Radio Waves Propagate in a PERIODICAL: Izvestiya vysshikh uchebnykh zavedeniy, Radiofizika, 1959, Vol 2, Nr 3, pp 388 - 394 (USSR) ABSTRAM The authors consider, on the geometrical optics approximation (Ref 8), amplitude and phase fluctuations of radio waves propagated in a turbulent medium in the presence of a plane separation boundary. In this case, the resultant field at the detector e is given by the sum of the direct wave and the wave reflected from the separation boundary (Figure 1). The two fields are given by Eq (1) in which R and 0 are the modulus and the phase of the Fresnel reflection coefficient, respectively. The amplitudes and phases of the signals can be written in the form given by Eq (2), where the quantities with subscript 11011 are inean values and AE i and Ayi are the fluctuation components of the corresponding quantities. Cardl/k For the case r r 2 (Figure 1), Eq (1) may be rewritten 3 LK 67531 SOV/141-2-3-8/26 The Effect of the Separation Boundary on the Fluctuations of Radio Waves Propagated in a Non-homogenecus Medium in the form given by Eq (5), where the symbols are defined by Sqs (3) and (4). In the case of small fluctuations, one has the approximate relations given by Eqs (6) and (7) and the phase of the resultant signal is given by Eqs (8) and (9). Assuming that the medium is isotropic, and using Eq (9a), one obtains Eq (10), where R E and R If are the correlation coefficients for amplitude and phase fluctuations. Eq (10) was obtained by neglecting the small quantities given by Eq (11). When V 1. = 2T(h , E and 4) are given by Eq (12). In order to carry out numerical calculations, it is assumed, as a first approximation, that the amplitude and phase fluctuations of the separate components e I and e 2 of the resultant field (Eq 9a) are the same as in the absence f the boundary. In that case one obtains Eq (14), where is the scale of izmgularities . Using Eqs (15) and (141), Eq (10) may be written in the form given by Eq ( 6 Card 2 6 7.-, The Effect of the Separation Boundary on the Fluctuation, of Radio Waves Propagated in a Non.--homngen--~-,us Medbim It is clear froin Eq (16) that, under the above asswnpti-is. the amplitude and phase fluctuations in the resultant signal are equal in the distant zone. However, the dependence of the intensity of fluctuations on the -kvaire- length, the parat-tietGr L, and the distance rI (Figure 1) may be quite different from that in an infinite medium. A comparison of this theory with experiment shows good agreement and hence it is clear that in practice it is necessary to take into account the effect of the boundary on the fluctuations. The above solution was obtained for the plane problem. It would be desirable to obtain a solution for a spherical Earth. .part4cularly in the regions where geometrical optics approximation does not hold. There are 4 figures and 10 refercnces, 7 of which are Soviet and 3 English. Card 3/70- /~x'4 3 6 7 _5 Y, '?,'70,90 AUTHOR: Men', A.V. SOV/141-2-3-9/26 'ion of TITLE- On the Correl-af Fluctuations of UHF Radio Waves ii-i the Case of Propagati-on4in a Non-homogenerus Medium I PERIODICALz. Izvestiya vysdtkh uc;hebnykh zavedeniy, Radiofizika, 1959, Vol 2, Nr 3t PP 595 - 399 (USSR) ABSTRACT: The propagation of waves in a non-homogeneous turbulent medium m = n(r, t) is accompanied by amplitude and phase fluctuations whose statistical properties are chara- cterised both by their intensity aad correlation at various points in space. Most of the papers in the literature (Refs 1-7) have been concerned with the determination of the intensity of the fluctuations and their Gorrelation along special directions and along the direction of propa-- gation. The present paper is concerned with the case of an arbitrary disposition of the points under consideration A and B (Figure 1), relative to the source of radiation 0 . Formulae are derived for the coefficients of longitudinal and transverse sorrelation of phase and amplitude fluctuations. It is shown that by measuring the, Card 1/2 ~_r 67532 SOV/141-2-3-9/26 On the Correlation of Fluctuations of LT11F Radio Waves in the Case of Propagation in a Non-homogeneous bledium fluctuation correlation coefficient for different orientations of the base relative to the source, it is possible to determine experimentally the "scale of irregularities" which on the average characterise the non-homogeneous medium. There are 3 figures and 7 references, of which 2 are English and 5 Soviet. ASSOCIATION: Kharlkovskiy institut radiofizfk! i elektroniki AN UkrSSR (Khar1kov Institute of Radiophysics and Electronics of the Ac.Sc., Ukrainian SSR) SUBMITTED: February 21, 1959 Card 2/2 KMIS , L.T. ; BRAUDE, S. Ta. -, OORPACH, V. T. 3:xperimental investigation of phase fluctuations in centimeter radio waves propagated over water. Izv. v78. ucheb. zav.; radiofiz. 2 no.6:848-857 159. (MIRA 13:6) 1. Institut radiofiziki i elektronlki AN USSR. (Microwaves) '7 9(9) AUTHOR: TITLE: PERIODICAL: ABSTRACT: ASSOCIATION: SUBDITTTED: Card 1/1 nnv/?i_q0_7_j0/2r7 Men19 A47 Braude, 7.Ya. Corresponding !.-Tember o f t- e A-] r.,qD and Gorbach, V.T. Action of the 'Boundary on the Pluctuation of Radio Waves in Yon-homogeneous Medium Dopovidi Akademii Fauk T7,krainslkoi R17R, 10r9, Fr 7, pp 740-744 (Ukrq7pl Pquatlions are derived for the fluctuation of ampli- tudes and phases of radio waves propagated along a plana surface in a non-homogeneous mediin. Tt is shomn that the fluctuation increases ,,:hen the ampli- tude of the mean field drops to zero. There are 3 diagrams, 11 mathematic formulas and 1n references, 7 of which are Soviet and 3 Pnglish T Tnsty-tut radiofizyky i elektroniky A -I URSR Tns tute of Radiophysics and Plectronics A'! 7krqF7R) Y'arch 6, 195P 7- 80121 S/141/59/002/06/002/024 E1326aJolah'X. AUTHORS: Men, _Braude,_S-Ya. an -_ - - . _L. TITLE: Experimental Investigation of-the Phase Fluctuations of the Centimetre Waves Propagated Over the Sea Surface PERIODICAL-. Izvestiya vysshikh uchebnykh zavedeniy, Radiofizika, 1959, Vol 2, Nr 6, pp 848 - 857 (USSR) ABSTRACT: The results of an experimental measurement of the fluctuation of the phase fronts during the propagation"of verti,~~ally polarized radio wayesSover the sea surface are reported. The frequency employed was 3 000 Me/s and the experiments were carried out under various nre-teorologi-cal conditions during July=,September and October-pe~_-ember over a sea route having a length of 33 km. The differential method of measurement was,.empXoyed, in which the fluctua- t1lorns of the phase differences of the signals recalved by dtversity antennae were-employed to determine the intensity and the decorrelation of the phase fluctuations at Var3.OUS points of the wave front. In order to reduce the effect of the boundary refraction, the receiving systems were situated at distances of 2, 5, 10, 30 and 100 m from the Cardl/4 80121 S/141159/002/o6/oO2/024 ElPj4E382,. Experimental Investigation of the Phaft ctuations; of the Centimetre Waves Propagated Over the Sea Surface first (the standard) antenna. Altogether six antennae were employed. The antennae were situated about 4 gi above the sea surface. The error in the measurement 8f the phase-d.ifference fluctuations was less than :t I ,even if the amplitude of the received signals varied as much as 60 db. The measurement showed that as a rule the deviations 9 of the phase differences with respect to the average value obey the normal law for all the trans- mitter heights h 1 and the distances between the antennae. The results of the measurements are indicated in Figures I to 11. Figure I gives the overall distribution of the phase-difference fluctuation for various distances between the receiving antennae. Figure 2 shows the normalized energy spectrum of the "slow" phase fluctuations for various distances between the antennae. Figure 3 shows the dependence of the effective value of the phase fluctuation on the distance between the receiving antennae Card2/4 and the height of the transmitter. The dependence of the 1~~ BOM S/141/59/002/06/002/024 Experimental Investigation of the Phaspe-1fMCUUNations of the Centimetre Waves Propagated Over the Sea Surface effective Value of the "slow" and "fast" fluctuations on the distance and height h I are illustrated in Figure 4. The characteristic of "slow" phase fluctuations for the case of an anomalous dependence on the height h I are shown in Figure 5. The characteristics of the "Complex" fluctuations are ill=rtrated in Figure 6. The change of the intensity of th4v "slow" fluctuations for the July-S-eptember period are shown in Figure 7. Figure 8 illustrates the intensity of the phase fluctuations as a function of the wind velocity (for the July-September period). The effect of the sea waves on the inteftsity of the phase fluctuations is illustrated in Figur-e 9. The effect of the radio refractions on the phase fluctuations is shown in Figure,1C T, o dep dizcq,of the normalized 0 . th V ep I tio e yl a t w mean-square fluctua ns on stle Pisildancleo"between the receiving antennae is illustrated in Figure 11. The authors Card3/4 ~Ir 80121 S/141/59/002/06/002/024 Experimental Investigation of the Phas5lHOEH'itions of the Centimetre Waves Propagated Over the Sea Surface express their gratitude to V.F. Shullge, O.M. Lebedeva and B.F. Veber for their participation in carrying out the measurements. There are 11 figures and 14 references, 7 of which are English and 7 Soviet. ASSOCIATION: Institut radioflzlkl I elektronlkl AN USSR Mnstitute of Radio-physics and Electronics of the Ac.Sc., Ukrainian SSR SUBMITTED: June 26, 1959 Card 4/4 9 (9 ) . AUTHORS: Braude, S. Ya., SOV/20-125-5-18/61 Men's A. JE. ., V. Is TITLE: The Fluctuations of the Phase Fronts in the Propagation of Decimeter-radiowaves Over the Surface of the Sea (Fluktuataii fazovykh frontov pri rasprostranenii desyatisantimetrovykh radiovoln nad poverkhnostly-u morya) PERIODICAL: Doklady Akademii nauk SSSR, 1959, Vol 125, Nr 5, pp 1019-1022 (USSR) ABSTRACT: Earlier papers dealing with this subject mainly take the amplitude fluctuations of radio signals into account. The phase fluctuations were investigated only in the zone of direct visibility (mainly over the mainland). The present paper deals with the least investigated problem, namely the experimental investigation of phase-front fluctuations over the sea. Ueasurements were carried out on the wave -,%-= 10 cm in the case of vertical polarization during the period of from July to September and October to December along a line of 33 km length leading exclusively over the sea within the boundaries of the "illuminated zone". the "half-shade" and Card 1/4 "shade". In these investigRtions the differential method was -The Fluctuations of the Phase Fronts in the SOV/20-125-5-18/61 Propagation of Decimeter-radiowaves Over the Surface of the Sea used, which (by measurement of the pulsation of the phase difference of the electromotive force in some reception antennas) make determination of the amount and the degree of decorrelation of wave front, fluctuations in distributedly arranged measuring points. The arrangement of 6 measuring antennas along a straight line for this purpose is described. In this way it was possible to measure phase fluctuations within the frequency range of from 0.01 to 100 cycles. Besides, provision was made for the possibility of filtering and sepamte 0.3 cycles) and high- indication of low-frequency (e, frequency (-,;, 0.3 cycles) (i.e. of the so-called "slow" and "fast") fluctuations. According to the results obtained by these measurements the fluctuations of phase differences were, with rare exceptions, distributed in accordance with the normalAaw. However, the fluctuations observed can be coordinated to the steady random processes only with certain reservations, for various cases of phase difference fluctuations of signals were detected. The dependence of fluctuation intensity on the intervals between the measuring Card 2/4 points remained qualitatively equal in the case of all The .. Fluctuations of the Phase Fronts in the SOV/20-125-5-18/61 Propagation of Decimeter-radiowaves Over the Surface of the Sea experiments. The character of the height-dependence of intensity was considerably more manifold, and therefore it also served as a basis for the classification of experiments. All measurements may be subdivided into 4 main groups: 1) Quasisteady standard type of phase-fluctuations. Most experiments belong to this group which is characterized by a monotonous reduction of fluctuation intensity with an increasing height of the transmitter. Such a dependence is found with propagation within a local isotropic troposphere over a plane separating surface. These measurements have a high degree of steadiness and good reproducibility of the intensity and spectral composition of fluctuations. 2) The nonsteady standard type of fluctuations is characterized by a considerable non-steadiness of the fluctuations. 3) The anomalous type of phase-fluctuations: in measurements of this group the heig~~-dependence differs considerably from that of the standard type. 4) The "flaring up" of fluctuations. This state usually did not last longer than a few dozen minutes, after which the usual state of the fluctuations was Card 3/4 restored. There are 4 figures and 10 references, 3 of which X7 829671 9. /,~00 S/142/60/003/002/007/022 AUTHOR: Men', A.V. E192/E382 TITLE: Wideband Balancing Devices (Baluns) PERIODICAL: Izvestiya vysshikh uchebnykh zavedeniy. Radiotekhnika. 1960, Vol~ 3, No. 2~ pp 227-252 TEXT; The transition from a non-s_ymi;ietrical line to a .Symmetrical one in antenna feedefs-is accomplished by means of two-conductor or coaxial stubs which are short-circuited at the end:~ these are shown in Figs. 1. In these systems, a shunting impedance Z. = jW Itg G , ahere W I is the wave impedance of the stub, is connected in parallel to the load RH Cw)W is the electrical len-th of the stub. The input impedance of such a symmetrical !:.ystem is given by~ I zBX = RH~ + ~2ctg 2 j 7W ~ctg - F2c t g2 Card 1/4 82967 S/142/6o/oo5/002/007/022 E192/E362 Wideband Balancing Devices (Baluns) where: UK ~ = R H/WL,J (2) From Eq. (1), it follows that in order to match the balancing junction with the feeder over a wide frequency band, it is necessary to reduce the parameter ~ . However, this does not permit the elimination of the reactive components. It is possible to compensate this reactance by means of an additional quarter-wave open-ended line section or by short-circuited quarter-wave loops of coaxial lines having a comparatively high wave impedance; these devices are illustrated in Figs. 2. This compensation does not affect the resistive component of the input impedance of the junction.. while the input reactance becomes: Card 2/4 8 ^-- -9 6 ' S/142/60/003/000-/007/022 Wideband Balancing Devices (Baluns) E192/E382 XBX = RHif 1 + ctg WK / P-1i ctg --K (3) where WK and -%K are the wave impedance and the electrxcal length of the compensating line. The above formulae are analysed graphically. Figs. 3 show the reactive component as a function of f. for ~ = 1 and ~';= P for various values of P . It is seen that the perfect compensation of the reactive component for is possible at three points only, while in the case of the compensation extends over a certain bandwidth. The dependence of the standing-wave ratio on Q1,,, for various values of and P is illustrated Card 3/4 82967 S/142/60/003/002/007/022 E192/E382 Wideband Balancing Devices (Baluns) in Figs. 4. It is also pointed out that the balancing junctions can be used as high-frequency signal branches. A system of this type is illustrated in Figs. 6, There are 6 figures and 3 references-, 2 Soviet and I English. ASSOCIATION: Uchenyy sovet Instituta radtofiziki i elektroniki AN USSR (Le,ny-ned Counc~-l of the Institute of Radlophysics and Electronics of the AS USSR) SUBMITTED: August .17, 1959 Card 4/4 20697 S/120/61/000/001/035/062 9, 60 0 0 ( e4 IL* 0 7,, 2 4,1 9 E192/E382 AUTHORS: Meng, A-V. and Zhukq I.N. TITLE: Automatic Measuring Line for Short Radio Waves PERIODICAL: Pribory i tekhnika eksperimenta, 1961, NG. 1, pp. 112 - 116 TEXT: The measuring lines (including automatic ones) are widely used for various measurements at ultrahigh frequencies (Refs. 19 2) but at metre waves it is necessary to employ bridge methods of measurement, These methods have a number of disadvantages and, consequently, an attempt has been made to devise an automatic measuring system based on a measuring line. The system described can be used at frequencies from 10 - 40 Mc/s. The system employs a multiprobe line from which the signals are taken by means of a switching device. A standard coaxial cable PK-1 (RK-1), having a length t = 0.35 kmax (where ~ - 10 m) is used as the line; this is helically wound on a drum having a diameter of 300 mm. A number of probes (30 in all) are situated at equal distances along tho line, the probes being coupled rather weakly with Card 1/3 20697 5/120/61/000/001/035/o62 Automatic Measuring Line .... E192/E382 the line. The signals from the probes are detected by suitable detector stages. The coupling between the probes and the line is adjusted mechanically as well as electrically, so that all the probes have the same sensitivity. The standing wave pattern is observed by successive switching of the out- puts of the detector stages to the input of a measuring ampli- fier. The signals from the amplifier are applied to an oscillograph indicator. Since the coupling between the wave inside the cable and the probes has to be very low,'~the amplifiers must have a gain of about 120 db. The switching in the instrument is performed by a multicontact frictionless mechanical switches; the contact pairs close in succession. In order to reduce the interference produced by the switches the wave in the cable was amplitude-modulated. The optimum modulation frequency was dependent on the construction of the switching system. This frequency was 500 - 1 000 c-P-s-, the switching frequency being 3 c.p.-g. Additional reduction in the interference via the switching device was achieved by providing the amplifiar with a low input resistance Card 2/3 20697 s/12o/61/000/001/035/o62 Automatic Measuring Line .... E192/E382 (about 7-5 kS,). Physically, the instrument consists of three unitst a high-frequency variable generator; a multiprobe line and an amplifier plus indicator with stabilised supply sources. The system permits a comparatively rapid measurement of the standing-wave ratios and phase. The instrument can also be used for the measurements of impedances and progressive waves, which is of importance in the adjustment of antenna systems and feeder lines. There are 4 figures and 2 Soviet references ( one of which is translated from English). ASSOCIATIONi Institut radiofiziki i elektroniki AN UkrSSR (Institute of Radiophysics and Electronics of the AS Ukrainian SSR) SUBMITTED: January 29, 1960 Card 3/3 ;;Z 7, 25 58 )'C 4 13 --6,/730 1) 2 1. D AUTHORS: Braude, S-Ya,, Corresponding 1,1-mter AS UkrSSR Len A~V, and Jlabo-,'~ 7 A. TITLE- 9 p r um -.7) d , 's c r e o u r;-- e h e a s, cosn.]c fr,~quen----es bf~.Lw PERIODICAL: lCkadem.,ya nauk UkrayIng Klzy~ RSR, Dopovidi, n,.- 1 ~q r- I. 4 6 - 47~ TIEXT: The ai,,,-, of ~ht ~;rticle 1.11~715 -'0 irov:-.1e cbs, of the fl,-~zx dengiliy ;,Or --',e the r,-~,r,- e I ish 'ha, zh.-, Pe c, e 3 n s in ti +L. G e 9 ta b I ~rtjC.-J t~hat tie abs,'rut i!)n n ral index eq:+~al r T e ~CS -en f j T I n anff e. V. zed hydrog h a Z- C60) --as abso-7-cr. --n hy~-i---g-n HII cannct Le fesuon-ible for s' c: n a -nance --n -~X. T- his observ.-M.,~r-ti from May to 1960. He use:i ~.-i ~ u r: ~i r, aer-2als, 5 m apart, each ro.,is. each --+-.v Oelnr apart. I'lach row of Fix m in len-7ti, ~la- Card 1/3 S/ /0, 13pectrum of di-s-re-e S.-rce cod froa, east *D vipq Each ocic I a a norizonla. dipole Consist1r,-, of -8 radl-- sit.,ia'A on the cylinder vi:tn an meter of 1 m~ TI-ley were p1aced _2 ,v~r ~he meta'Liliz~.d e.,--th. 160 measurements ~n the rangE cf "he fl~.x of the radio--soii:._-e C~a.-31crjr-.a-A vie~r.. macie b, ~nterfey-_-,,vtric. dio telescope. 11,.rd the flux 'en--ty I k the follov,:ng was usedi ,P where 4Sf ~ the v,,~dtn of the bana; P -fte dif-ference bet,"It-cr, power of the gala~_,tic i;rruunJ "I'--ther vvi'h tho di-screte soL4r_- ancz b) the power of tne galactic grounl ,niy, A, - effe--t-.,Ve aiea Df the aerial; -Defficient for the whole, r~.,IJJ,o-telescope (n~)t less than 70 ~Abs-~ractor~s note: 'A e pr:ived to be pracTicai~y in- dependent of the an~ i~, a irox,~matciy equal to slfiowlng the rela--ion betv.,een The results of research a.-e g~ Card 2./3 ! ~,l ') 9 0' 4 10 1 D -5,,' D-4 0 o f al I ~3 CC. a D,9 f au - :,~n f lux dens I pr - h, It -r e v 0 a-s t ~exce~jt fr-,r- e t ~rur, of n tr.E., r a ri - 5 D f iirurf.-~i and I So v e 67 h e ' 7 vc 3 A. C , P P- . 3 R 5 U B I XCE I A. V. 0---- ---1- - - Approximation method for the analysis of the spectra of non- stationary fluctuations. Izv. vys. ucheb. zav.; riaofiz. 4 no.3:521-533 161. (MIRA 24:10) 1. Institut radiofiziki i elektronil-i All USSR. (Microwaves) 31995 sA42/61/oo4/ooVoi6/oi8 9192/9382 AUTHORS. Men', A,V., Zhuk, I,N. and Dudarev, N,,I. TITLEa Multiprobe measuring line with a contactless switch PERIODICAL~ Izvestiya vysshikh uchebnykh zavederLiy, Radiotekhnika, v. 4, no. 4, 1961, 494 - 496 TEXT-~ The instrument described was designed and built at the IRE AN UkrSSR (Institute of Radio-electronics of the AS UkrSSR) and has an operating bandwidth ranging from 10-40 Me/s. Constructioxally., it is in the form of two separate units, the radial frequency unit and a mechanical system. The mechanical system comprises a multiprobe line, a high-frequency capacitative switch. a capacitative current probe-and -collector and a synchronous drive motor operating at 1 500 r.,p.m, The line of the system is in the form of a coaxial cable, type PV-6 (RK-6), having an impedance of 52.-TI. and a length df 10 m; it is wound helically on a toroid,, The electrical unit of the device consists of four circuits,~ a signal generator; an amplifier; a synchronous time-base and an indicator (output) circuit. The design principle of the instrument is illustrated in Fig. 1~ Card 1/1' ii,995 S/l42/6i/oo4/oo4/016/oi8 Multiprobe measuring line E192/E382 The signals from the HF generator I , which has a wide operating range, are applied to the input of the long-line 2 , which is terminated by the measured load, Weakly-coupled., screened probes are inserted into the line at equal intervals. The HF oscillations pj-cked-up by the probes via the RF capacitative switch 3 , the pick-up and the cylindrical co.llector 4 14- (which is driven by the synchronous electric motor) are applied successively to the input of the measuring amplifier 5 . The HF signal of the generator is modulated by a low-frequency F M and the amplifier 7 , which is terminated by a noaresonant detector, is tuned to this frequency~ During uniform rotation of the switch pulse signals are produced at the output of the amplifier and these are applied to the vertical plates aX the cathode-ray indicator tube 6 . Simultaneously, a trigger time-base waveform is applied to the horizontal plates of the tube from the amplifier 7 ; the time-base is triggered by thE: signal received from the first segment of the sw2.tch, which is produced by a special auxiliary generator 8 , whose operating Card 2/4 11995 S/142~61/oWooVoWoi8 Multiprobe measuring line .... C-192/E382 frequency lies outside the operating range of the instrument- In this way, a screen of the indicator tube shows the distri- bution of the I-IF voltage along the line, the picture being in the form of a oeries of pulses. The en%relope of these pulses determines the phase a 'nd modulus of the reflection coefficient of the measured load. If the signals appearing at the output of the 'iF si-,itch are detected directly, the instrument can be used to measure the power standing-w-ave ratio. On the other hand, if an auxiliary non-modulated RF signal of a large amplitude is applied to the input detector, the voltaZe standing-wave ratio is measured. The instrument has been testedovcr a long period of time and it was found extremely us,~ful in the adjustment of various types of antenna systems, matching devices, matching of feeders, input circuits of the receivers, filters, etc. There are 2 figures and 2 references: 1 Soviet-bloc and 1 Enr~lisll - Itef. 2 - Lester Zukeri:ian, Electronics, 1959, 32, no. 12, 64. Card 3/4 '.--'ultii)robe measuring I ASSOCIATICN: Uchenyy of the SUBKITTED: Getober 31995 S1 I It 2/6 i/t)o4/ooVc)l6/ol3 ine .',192/ E382 sovet IRE !%i.- -, r-SSR (5cientific Council IRE AS Uki-L-"R) 15, 1960 Fig. 1: .3 a PYD'? 7 Card 4/4 MENI, A.V.; ZHUK, I.N. --------- Automatic measurement line for short waves. Prib. i tekh. eksp. 6 no.1:112-116 Ja_F 161. (MIRA 14:9) 1. Institut, radiofiziki i elektroniki AN USSR. (Radio waves--Measurement) (Pulse techniques (Electronics)) MEN I A V Wide-band "metallic' insulators. Ukr. fiz. zhur. 6 no.2:267-272 mr-Ap 161. (miRA 14:6) 1. Institut radiofiziki i elektroniki AN USSR, g. Hhar'kov. Coaxial cables) ectrie insulators and insulation) M AUTHOR: t,1enlt APVo 2930B S/109/61/006/010/005/027 D253/D302 TITLE: Time (spectral) characteristics of fluctuations of phase dilVerences arising in the propagation of radio waves in the troposphere PERT-ODICAL:Radiotekhnika i elektronika, v. 6, no. 10, 1961, 1625 - 1635 TEXT4 This is a rt of an experimental investigation on 10 cm vertically poiariVowaves transmitted over a fixed sea path of length 33 km, using two receiving antennas separated by a distance d ranging from 2 to 100 m transverse to the path. An object of the investiration is to obtain more detailed data than presented previ- ous -!v. The spectrum of fluctuations in the range from 0.005 - 0.01 to -1 -200 c/s is studied. The heights of the receiving antennas (h) w----e about 4 m; the height of the transmitting antenna (ho) was given different values of 35, 18 and 9 m. The period of the investi- gation covered summer, autumn and winter, thus including varied Card 1/4 29308 S/109/61/006/0.iO/C)05/027 Time (spectral) characteristics D253/D302 meteorological conditions. The records obtained were analyzed by numerical methods; one method involved "discretization" of contin- uous records and recovery of Fourier components. Another "continu- ous" method made us of a mechanical correlator. Narrow-band filters with band width 1/T were used for the analysis, T being the Waly- sis interval. The spectral distribution observed for the different values of ho and for d = 2 and 10 m are qualitatively similar. The data obtained indicate a tendency to sharp reduction of spectral density at higher frequencies, evidenced most clearly at higher values of d and hoo peak density occuring between 0.1 and 1 c/s. Analysis of a large number of measurements confirmed the essentie-I non-stationariness. While the general intensity of Wluctuations vas E stable to within 0.5 - 1 dbg within narrow frequency in%ervals there were large variations, of 10 - 20 db or over. The non-statio- nariness was also shown by the variations with duration of measure- ment; with increased duration there was increase of general inten- sity of fluctuations together with a spectral re-distribution -,Q- nerally towards lower frequencies. Fluctuation intensity varies as T-1, as for "white" noise. The variations of mean spectral density Car4 2/4 29308 S/10 61/006/010/005/027 Time (spectral) characteristics D253YD302 with frequency and with analysis band width are similar for d = 2 and 10 m and for the three values of ho; mean dispersion is � 5 db, increasing in some cases to � 10 db, and over; spectral density de- creases rapidly as frequency increases, the relatior following an inverse 1.5 law for d = 2 and an inverse 2.5 law for d = 10 m. The results are in good agreement with those given for fluctuations of absolute phase as long as d is sufficiently large compared with 1, the characteristic correlation dimension - (2 - 3 m). Where direct analysis cannot be applied, a statistical method is used. The in- fluence of meteorological conditions was investigated by making measurements of pressure, temperature, wind and humidity at four points along the path; no clear connection could be shown between the spectra of fluctuations and the meteorological conditions. There are 6 figures and 18 references: 14 Soviet-bloc and 4 non-Soviet- bloc. The references to the English-l&Rguage publications read as follc . R.B. Muchmore and A.D. Wheelon, PIRE, 1955, 43, 10, 1437; k,P. D%:am and B.M. Tannin, PIRE, 1955, 43, 10, 1402; J.W. Herbst- rent and M.C. Thompson, PIRE, 1955, 43, 10, 1191; and M.C. Thompson Card 3/4 2~308 S/109/61/006/010/00j/027 Time (spectral) characteristics ... D253/D302 and H.B. Janes, J. Res. Nat. Bonr. Standards, 1959, 63D, 4, 45 SUBMITTED: Notember 16, 1960 1 Card 4/4 AUTHORS. Bass, F. G., TITLE: Fluctuations the Pre3en:~e PERIODICAL: Uspekhi fizi2heskikh 87576 S/05Z BOOOB05'6 Braudo. S. Ya., Kaner, E, A., -Men', A, V of Electroma~--netin Waves in the Tropcsphere in of a Boundary Surfa~e nauk, 196', Vol- 751 No, 1, pP 89-19 TEXT: The present article is a review cf theoretical rind expPrImpn4- I s tudies on f requency, phas e, ani amp', -~' tude f I u,: lua- i--rlsf-?C fna,~n, waves propagating- in "he trnp,~cphere as a resul" of -i'm sph-r;,.- inh-lm-. _Peneities. The effect ~f these fluctuat;ons upon wave propagati-on in an infinite medium was first pointed out '~y 3mclukhovsk'y; further nvestiga tions by Einstein, Rayleigh and others (R,~fs. I - 14) followed- Hcwever, it proved to be of essential importance to the theory of wave propagation to take the existence of a boundary surface (surface of the Earth) into account; this leads to interference effe7~ts and other phenomena, and th~3 theory is found to deviate essentially from the theory of fluctuation effects in a free atmosphere. The first part is a review of essential theoretical papers in this field First, the statistical characteristi'7s Card 1/3 87576 Fluctuations of Electromag-net-'o Waves Jn the S/0 ~ 3/61/07 310,-1 /30 Troposphere in the Presence of a Boundary BGO~/BO56 Surface of the electromagnetic field above the plane boundary are discussed, after which fluctuations of the electromagnetic field in an inf4nit;, space are discussed. In the following, the q--ia1itatf-.re effect -,f a boundary upon the fluctuations cf this field are studiei, and a mathemat, cal representation of the fluctuation field and of the moan field abcv- the boundary is discussed along with some limiting cases. In the followir., chapters, amplitude and phase fluctuations in the far zone are dis--issed. and the correlation of flu,7.tuations above the boundary are deaif- wi.-h. T~-.- second part presents results obtained by experimental investigilions of fluctuations- In the course of investigations of uli-rasonic wave propagation, frequently the presence -)f intensive fluct--ic-ions ,f raji: signals during their passage through the troposphere was ribserved The investigations of these fluctuations, however, are mc%stly -f lo-al character, so that a comparison with the theory presents difficu'ties. 1-1 recent times, investigations have been extended over larger areas (above all oceans), so that more general results are now available. In detail, th, authors discuss the method of measuring radio3ignal flii~tuationq, 'h" main characteristics of fluctuations, the various types of phi3,-- Card 2/3 87576 Fluctuations of Electromagnetic Waves in the S1 53/61/073/001/303/0'14 Troposphere in the Presence o'L a Boundary B006/BO50- Surface tions, and the dependence of fluctuations on distance and meteorological conditions. An experimental-theoretical comparison proves the considerabl~- influence exerted by taking the boundary into account: It leads to a quicker increase of fluctuations with growing distance, to a change in the frequency dependence, to the occurrence of fluctuation flashes, to a quick increase of the fluctuation intensity in the minima of the mean field, etc. The problems to be theoretically solved in future consist in taking the curvature of the boundary, the anisotropy, and the instability with time of the medium into account. B. A. Vvedenskiy is mentioned. There are 12 figures and 45 references; 29 Soviet and 16 US. Card 3/3 AUTHOR: Men' , A.V.- S/141/62/005/001/007/024 E032/F,314 TITLE: On the hypothesis of the transport of "frozen-in" turbulence in the study of fluctuations in non- uniform media PERIODICAL: Izvestiya vysshikh uchobny1ch zavedeniy, Radiofizilca, v-5, no. 1, 1962, 70 - 82 TEXT: According to the above hypothesis, first put forward by V.A. Krasillnikov (Ref. 1 - Izv.. AIN SSSR, ser. geogr. i geofiz., 13, 33, 1949), the transport of irregularities in the medium by wind has a primary effect on the cliange in radiowave fluctuations with time. It has been shown that the transport effect can be described with the aid of spatial correlation and autocorrelation functions. It is a-ssumed in such calcu- lations that the prop.grties of the medium remain unaltered during the transport process and it is not -always clear whether the assumption is, in fact, justified. In this connection the authors investigated the possibility of the direct Card 1/2 S/141/62/005/001/007/024 On the hypothesis E032/B314 determination of the transport effect in the troposphere and estinated the effect of turbulent motion, diffusion, thermal conductiv-ity and convection on the fluctuation characteristics. It is shoim that space-tii-zie correlation functions of fluctuations can, in most cas,es, be used to establish the presence of the transport effect among other processes occurrin.- in the medium and to estimate the effect of these processes on the time characteristics of fluctuations. A number of graphs are given to illustrate the application of the correlation functions to these problems. These calculations are of interest in the case of radiowaves propagating along different routes in a nonuniform turbulent medium. There are 4 figures. ASSOCIATION: Institut radiofiziki i elektroniki AN UkrSSR (Institute of Radiophysics and Electronics of the AS UkrSSR) SUBMUTT ED: May 26, 1961 Card 2/2 s/14i/62/005/002/010/025 t7 E032/E414 AUTHOR: Men', A.V. TITLE: Study of the space-time correlation functions for amplitude fluctuations in measurements on intersecting pa ths PERIODICAL: Izvestiya vysshikh uchebnykh zavedeniy. Radiofizika. V-5, no.2, 1962, 287-306 TEXT: This is a continuation of previous work by this author (Izv.VUZ. Radiofizika, v.5, 1962, 70). The results obtained in that paper can be used in conjunction with experimen-lal data to verify the presence of transport of medium irregularities both in the case of frozen-in turbulence and in the more general case of unfrozen turbulence. The experimental verification of the theoretical results was carried out by studying amplitude fluctuations of vertically polarized radio waves (X = 10 cm) over sea water along a fixed path of 30 kin. The receiving antennas were at a distance of 2 to 100 m along a line perpendicular to the direction of transmission. The experimental procedure was as Card 1/2 S/141/62/005/002/010/025 Study of the space-time correlation ... EOWE4i4 described by J.11.1lierbstreit and M.C.Thompson (Proc. IRE, v.43, 1955, 1391) and the present author (Radiotekhnika i clektronika, n6.7, 1962, 232). The measurements were repeated under various meteorological conditions (summer and autumn). Analysis of a large volume of data indicates the presence of a transport effect in most cases. The transport of frozen-in turbulence was Li detected in 505 of cases. The effect of other processes occurring in the medium (in addition to the latter effect) was detected in 40% of all ca&es. No clear transport effect was found in about 10510 of all cases. However, there is a considerable discrepancy between the experimental results and theoretical predictions. Analysis of the radio data shows that the processes occurring in the medium are non-stationary and the ergodicity condition may not hold. There are 8 figures. Card 2/2 S/109/62/007/002/007/024 q. Nod D256/D303 AUTHOR: MAL"&Y- TITLE: Correlation between amplitude and phase fluctuations of radiowaves propagating the troposphere PERIODICAL: Radiotekhnika i elektronika, v. 7, no. 2, 1962, 232 - 238 TEXT: The correlation between the amplitude and phase fluctuations is investigated at a given point in space, for waves propagating above the boundary plane in a non uniform turbulent medium. It is shown that the correlation coefficients of the amplitude and phase) fluctuations (i.e. the phase at the point of the receiver as measu- red against the position of the source) derived by Chernov for an unlimited non-uniform medium are applicable for a more general case of wave propagation in a non-uniform medium limited by a boundary surface. The validity of the theoretical considerations was tested experimentally using vertically polarized 10 cm waves and measuring at the same time the amplitude and phase fluctuations on a fixed Card 1/2 S/109/62/007./002/007/024 Correlation between amnlitude and ... D256/D303 base of 30 km and at low altitude (35, 18 and 9 m above sea bevel). The investigation of the wave propagation was extended into the re- gion shielded by the Earth's curvature and as for the direct propa- gation practically a full decorrelation of thephase and amplitude fluctuations was observed using 100 to 200 sec averaging time. It is pointed out that the obtained results could be of practical. terest; by simultaneous application of both phase and amplitudt~ -.j- thods the accuracy of measurements can be increased owing to the statistical independence of their errors. There are 3 figures and 12 references: 11 So~riet-bloc and 1 non-Soviet-bloc. The reference to the English-language publication reads as follows: R.B. Muchmore and A.D, Wheelon, Proc, I.R.E., 1955, 43, 10, 1437, SUBMITTED: December 15, 1960 Card 212 % -7 AUTHOR: Men!, A. V. 9 S/109/62/007/003/UG1/029 D256/D302 TITILE: Effect of ',,~e transportation of space inhom-c-eneit-Jes on radiowave fluctuations in a turbulent medium PERIODICAL: Hadiotek~Mika i elektronika, v. 7, no. 3, 19062, 369 - 374 Consicierinc- the denen~lence of radiowave fluctuations on va- U rious physical processes -,aking place in zhe medium it was proposed to employ the m;asurement~s of -fluctuations to investigate in'hon-o,-,e- neous meaia. The measurements of fluctuations could be erq:~Ioyed to bust the validity of t',Ie I-rozen' turoulence aDnroximation, where time dependent (self-correlation) fluctuation functions are ex-)res- sed b,r the sDace correlation -functions, and in particular one could examine the ;fluctuation changes produced ny the transportation with -~he wind of lniiomogeneities in the 'frozen' medium. The trans5or-ta- tion with the wind of the inhomogeneities was investieated oy the author and the experimentally observed properLies of the fluctua- Card 1/3 Er'Cect of the trarksportatior. of ... S/109/6z/007/003/001/029 D256/D302 tions are comnarea with the theoreiical predictions. The a.,,Iplit,.zde fluctuatiolls 01' 3000 Yc/s radio~,iaves were i-easurea over the sea surface at 30 km from a trans,.,,itter whose antennas viere -placed at ~ieights of 35, 18 and 9 Tn. ihe fluctuations were recorded using si- multaneously a pole antenna and one of the antennas placed at a diSLance of 2, 5, 10, 30 and 100 m irom the pole antenna. From the measurements the following Y.'unctioi, was deterwined to describe the correlation of the fluctuations a(yi, ti)a(y, t 2) K(d, 2 a -h vv.--ere a(y, t) - fluctuation of the wave amplitude or -phase; ~2 - t is the tirne shift; d = y the length of the base of 1 1 - Y2 's the :~:easureaent, i.e. the dis-.ance between the receivin,~- ante.nnas.' The function K(d, T) was 3eterr-ined using a mechanical correlator. The fluctuation correlation _-~'unctions were calculated assumin.:_, a Gaussia-yi shape pulsation of the refractive indices showing good C) Card 2/3 S/10 62/007/003/001/029 Effect o'~L' the transportation of ... D2 50'-YI)3 0 2 agreement with the experimental data. There are 4 figures and 11 references: 8 Soviet-bloc and ) non-Soviet-bloc. The references to th- e E ~n lish-larguage -publications read as follows: P.G. Bergii,.ann, Phys. 2,ev., 1946, 70, 7, 11+86; D. Yintzer, J. Acous-U, Soc. America, 195-), 25, 5, 922; 1955, -25, 6, 1107; 1954, 26, 2, 196; 'R.B. luch- more, A.D. Y/heelon, Proc, I.R.E., 1955, 43, 10, 1437; 1955, 43, 10, 1450. SUBYITTED: June 15, 1961 Card 3/3 ., S.Ya.; ZEMKO LN ; BABOKOV9 K.A9 BRADDE . A.V., a Radio ezisai4n spectrum of Cassiopela-4 at frequencies lower than 30 me/see. Astron.ehur. 39 no.18163-165 XA-S 162, (KM 15s2) 1. Inst-itut radiofiziki i elektraniki AN USSR. (St4Lr"Peatra.) mmio "6MOMO S/033/62/039/003/010/010 E032/E114 AUTHORS: Sodin, L.G., Braude, S.Ya., and Men', A.V. TITLE: Observations of the spectra of strong bursts of solar radio emission in the 10 - 25 Mc/sec range on July 14 and 18,,ig6i PERIODICAL: Astronomicheskiy zhurnal, v-39, no-3, 1962, 542-544 (+ 1 plate) TEXT: These measurements were carried out with a 10-40 Nic/sec spectral analyser, which included a panoramic receiver with a wide-band high-frequency amplifier (10-40 Mc/sec), a heterodyne with frequency conversion in the range 136-166 mc/sec, an inter- mediate frequency amplifier (126 Mc/sec), a secbnd frequency converter, a second intermediate frequency amplifier (2 Mc/sec) and various indicating devices. The pass band of the apparatus as a whole was 7 kc/sec. The analyser operates with a multi- dipole antenna consisting of 24 dipoles. The effective area of the antenna was 350-500 m2. The width of the main lobe of the polar diagram of the antenna in the E - W plane was about 200. Owing to the considerable background due to terrestrial radio Card 1/3 Observations of the spectra of ... S,/033/62/039/003/010/010 E032/E1i4 stations, weak and medium bursts could not be observed. On July 12, 1961, at 10 hours 20 minutes U.T. there was a rapid increase in ionospheric absorption followed by an almost complete fading bf all radio signals between lU and 25 Nic/sec. Immediately after this, the solar radiation flux density rose to about 10-19 w/m2 cps and the enhanced emission continued until IC hours 55 minutes. After the termination of the radio burst the enhanced ionospheric absorption continued for a further four hours. Since the reception of the radio emission was carried out in the side lobes of the antenna no details of the phenomena are reported. On July 18, 1961, at 9 hours 50 minutes U.T., a region of enhanced radio emission was found to move in from the hign-frequency side and had a sharply defined low-frequency cut- off. The rate of drift of the low-frequency cut-off was about 2 ',~,c/scc/sec so that the spectrum was classified as belonging to type Il. At 9 hours 56 minutes the intensity of the burst was found to fall and at 9 hours 58 "'inutas a second burst appearad -ro-r the high-frequency end and persisted until 10 hours 30 rains. A . It ias found that the bursts were simultaneous with large Card 2/3 Observations of the spectra of ... S/()33/62/039/003/01-0/0-10 EC32/E114 chromospheric flares. The onset of the bursts was simultaneous with the increase in ionospheric absorption of the type reported by k. Sheridan and G. Trent (Observatory, v.81, 921, 1961, 71). This phenomenon may be clue to an increase in the ultraviolet solar radiation. In the steady-state stage, the emission consisted of a number of separate bursts which drifted at random at the rate of about 1 Mc/sec/sec towards both low and high frequencies. The width of each burst lay between 0.5 and 5 Mc/sec, There are 2 figures. SUBMITTED: December 25, 1961 Card 3/3 ACCESSION NR: AP4007177 S/0141/63/006/005/0897/0903 AUTHOR: Paz6lyan, L. L.; Braude, S. Ya.; Bruk, Yu. M.; Zhuk, 1. N.; Ryabov., B. P.; Sodin, L. G.; Shary*kin, N. K. TITLE: Radiation spectra of discrete radio sources Cassiopeia A. Cygnus A, Taurus A. and Virgo A at the 12.5 - 40 megacycle frequenv cies SOURCE: IVUZ. Radiofizika, v. 6. no. 5. 1963, 897-903 TOPIC TAGS: radio emission, radio emission spectra, Cassiopeia A radio emission, Cygnus A radio emission, Taurus A radio emission, Virgo A radio emission, radio source spectrum, discrete radio source, radio spectroscopy, radio astronomy, radio frequency spectrum, Cassi- opeia A,, Cygnus A, Taurus A, Virgo A, extragalactic radiation, radia- tion absorption ABSTRACT: To check on the hypothesis that a sharp change, mahifest in a decrease in intensity with increasing wavelength, occurs in the radio emission spectrum of discrete radioastronomical sources below Card 1 ACCESSION NR: AP4007177 40 Mc, the fluxes of Cassiopeia-Aj Cygnus-A, Taurus-A, and Virgo-A were measured in the 12.5--40-Me range., for which no reliable abso- lute values are known. presently. To improve the accuracy, absolute measurements were made only for the aost powerful source, Cassiopeia- A, using seven sets of radio interferometers with half-wave dipole antennas. The other fluxes were determined relative to this source. The 'collapse' of the spectrum at high frequencies was noted for all but Taurus-A. The emission measure and the ratio of the normal com- ponent of the magnetic field to the number of electrons per cubic centimeter of the discrete sources calculated from these measurements are 3.5, 3.5, 5.0 and 700, 700, 120 for Cassiopeia-A, Cygnus-A, and Virgo-A. It is assumed that the decrease in the spectrum is due either to absorption in H.1 clouds or by a decrease of the refractive index in the source. Orig. art. has: 2 figures, 4 formulas, and 4 tables. ASSOCIATION: Institut radiofiziki i elektronik~ AN UkrSSR (Insti- tute of Ridiophysics and Electronics, AN UkrSSR) card n /12 - r-IR! # BASS, F.G.; MEN', A.V. Spatial correlation of the fluctuations of waves Propagating in an infinite turbulent medium. Akust. zhur. 9 no.3:283-290 163. (MIRA 16:8) 1. Institut radiofiziki i alektroniki A14 UkrSSR,, KharIkov. (Sound waves) S/108/63/018/002/004/010 D413/D308 AUTHOR: Men', A. V., Member of the Society (see Association) TITLE: The autocorrelation characteristics of phase-difference' fluctuations 'PERIODICAL: Radiotekhnika, v. 18, no. 2, 1963, 27-36 ITEXT: Previous studies of fluctuation in waves propagated by tur- 'bulent media have been concerned with determining the space and time characteristics of the fluctuating field, and have investiga- i .ted the fluctuation of absolute phases and amplitudes in greatest ;detail. The fluctuation of phase-difference between signals receivedl -at two points is also of interest in various systems. The author .considers the derivation of autocorrelation characteristics for this !fluctuation, dealing with both parallel and intersecting paths. For .the case where the medium is described by a Gaussian correlation ifunction, he determines.,,"the autocorrelation coefficients taking into account the transfer of both 'frozen' and 'unfrozen' turbu- -ilences. Results calculatqd for several particular cases are shovra Card 1/2 5/108/63/016/002/004/010 The autocorrelation characteriotios D413/D308 graphically, anq appear to Oe in jualltative agreement with experi- ;Iment, TIAere are 4 f1g4req, ASSOCIATION: Nauchno-tekhnicheskoye obshchestvo radiotekhniki i elektroavyazi im. A. S. Popova (Scientific and Tech- nical Society of Radio Engineering and Electrical Communications imeni A. S. Popov) /-Abstracter's noteli Name of Association taken from first page of journal-/i SUBMITTED: January 5, 1962 (initially) April 13, 1962 (after revision) Tf !,ACCESSION NR: AP4037397 S/0106/64/000/f)05/0014/0021 AUTHOR: Dazelyan L. L.; Druk, Yu. He; Zhuk, 1. N.;_Men', A. V.; Phary*kin, No K* TITLE: WLde-band highly directional antenna for decameter Wav e- lengths �,OURCEt ElektrosvyazI, no, 5, 1964, 14-21 TOPIC TAGS: antenna, directional antenna, highly directional anten-~ na,wide band antenna.wide band highly directional antenna. beam- width electric control, half.wave dipole, shunt dipole, cylindrical dipole, array element, antenna element, antenna efficiency. antenna gain ABSTRACT: A receiving antenna intended for radioastronomical inves-~ tigation of discrete sources and cosmic background in the 20-40-mc range is described. The antenna was designed on the principle that the electric control of the beam at large scanning angles can be realized by phasing low-dLrectional discrete elements, whose large Crd 1/3 ACCESSION NR: AP4037397 number.insures the required degree of resolution. The antenna arralf located along the W-E line, consists of 128 half-wave wide-band cylindrical dipoles arranged in 4 rows, each carrying 32 dipoles. The cylinders, formed by 18 elements of 8 mm each, are I m in diam--: etere The distance between array-element centers along and across the array is 5.5 m. The array elements are suspended 3 m above the I ground. The signal excited in each element is transmitted to the output of each row through a matching balancer, three adders, and three coaxial cables with a total length of 101 m. The toroidal ferrite transformers used as adders made it possible in the 10- to 60-mc range to achievp a VSWR of 1.05 or better at a rated load with an efficiency of 95 to 97% or better. The electric control of the beam, which is accomplished by inserting delay cables be - tween the adder and the output of each rowp is carried out only in the N-S planes The radiation pattern and gain of the antenna were determined by the simultaneous recording of signals from Cassiopea-A' received with the antenna described and a standard interfarometer consisting of two half-wav?'dipoles and subsequent: comparison of the:' Card 2/3 ACCESSION M AP4037A97 results. At the same time the effective area (gain) was calculated by computer, Good agreement of experimental and theoretical data LndLcatesthat the antenna gain calculated on the basis of the &&in found experimentally for the alev'atLon of 81' will be close to actual, at least for the came of higher elevations@ OrL&. art, hast 11 figures and I formuLa, ASSOCIATIONS tkone SUBHITTEDe 04H&r63 DATE ACQs 09Jun64 EMS 00 SUB CODE: 90 NO REP SOVI 004 OTHERS 002 3/3 TH., 1--a- ui L-11 AP ACCESSION KR: AP4033119 510120164/000/OOZ/009610100 AUTHOR: Bruk, Yu. M.; Men'. A. V.; Bazelyan, L. L. TITLE: Measuring the parameters of multiple-unit antennas SOURCE: Pribory* i tekhnika eksperimenta. no. 2, 1964. 96-100 TOPIC TAGS: antenna, multiple unit antenna, electrically steerable multiple unit 1;' antenna, musao radioastronomic antenna, antenna parameter measurement, muea parameter measurement ABSTRACT, A method of measuring the parameters of a multiple-unit electri- cally steerable antenna (musa) under operating conditions without Introducing noticeable distortion into its circuit is considered. A low-loas measuring line is connected between the output point being measured and the load (radiators), and the values of loop and node voltages are noted. Then, a calibrated attenuator I connected in place of the multipole being tested, and the attenuator is adjusted until the same values of the loop and node voltages are attained. Simple formulas Yield the values of the attenuation and efficiency of the antenna., the impedancee ACCESSION NR: AP4033119 radiation power, currents, etc. , can also be measured by this method. The errors ii-tivolved are theoretically assessed. The method was used in practice to measure the efficiency of a IZ8-unit electrically ateerable radioastronornic antenna described by L. L. Bazelyan, et al. (Elektroavyaz, 1964, no. 4). A 5Z-ohm multiprobe automatic measuring line was used. Estimated and measured efficiency curves are shown for frequencies within 20-40 mc. "In conclusion, the authors wish to thank P. A. Mel 'yanovskiy and V. V. Krymkin for their help in carrying out the experiments. 11 Orig. art. has: 4 figures and 13 fornmlas, -ASSOCIATION: Inatitut radlofiziM i elektronW AN UkrSSR (Institute of -Radiophysics and Electronics) AN UkrSSR) SUBMITTED: Z4May63 ATI) PRESS: 3076 ENCL: 00 jPUB CODE: EC NO REF SOV: 005 OTHER: OOZ 2/2 L Pae-2/Pi_4 X(t) P 4 V AFIST R/R AGIM a /S3D B iQqFl ~jl t Zl JT ASD(a) ACCESGION rip, - AP5000611 5/002'i-/6]i/oori/oli/1464/146-8 S. Ya. ("orrespondi g r, mber. All n e AUTHOR: Bazelvan. L. L Braude, UkrSSE _y" ~!JjgXg., V V.; KMrqkin V A V.; ~L2din L TITLE., R dio emission-a* a pectral density-of a omen discrete sources at r equancies of 2o-4o MC SOURCE:--- AN UkrRSR.--_-Dopqvidi, no. 11, 1964, 1464-1468 TOPIC TAGS; radi 6- astmno M radio telescope, radio emission ABSTICRACT: Radiation-densities of eight discrete sources of cosmic- radiation -in them 20-40-Me band were measur-Ed with a wide-band radios telescope.- The measurements were carried out, from October 1963 through February 1:964,. The radio telescope"consisted of two electri- cailly controlled multielement antenna, arrays (each With 128 radiators) spaced 470 m apart along an E-W line.. The antennas formed~the elements o a T-shaped -Interferometer F.,ystem. -The width of' the-radiation pat-.--. tern --of -each :antenna,- was -4.611- --at -20--146 -and -2.3'_ at 40- Mc;- the- inter- - -at th - ference interval quencies- 'Was 1.80:and 0.90, respectively. ese fre 7- Phr-se-mo-d-ulated-,.radiome.ters- (i-f.--bandiridths,-.10--1-5-,-kc) -were-- used. for Card :0N - - - -I ~' - - ' - ; "L ,- L.-- .- - - - - - -- - - . . -. 7 ~'. : ,, , . -- " , ~ I " - I , , - - : : : . -'. - ~ *- ~ -- . L ' - ' ' ' L - 1 ' , _ _ . _ _. -_ - ". . . L_ , -' L-- - ~- -- - -~ -.. - -1 1-1 ~ ~:-, - - - , -- --7- ' L . i ! . - ~~' :: . L_ . - , .. . "L ___; , - ~ - = , ~ ~. ~~ -- ~ - , - - -- ACMSSICN UR: AP4039721 S/0141/64/007/00210215/022t4 AUIHOR: Bazelyang. L. L.-, Bruk, Yu. M.; Zhuk, I N. -, Henv 9 A. V. Sodin, L. G. Shary*kin, N. K. Tr=: Wide-band radiointerfarcmeter with eleatric control of antenna pattern SCURM: IVUZ- Radiof itika, v. 7 . no. 2, 1'J64, 216-224 TDPIC TPM: antenna rediation pattern, antema switd-iing, ru&o astrmcm, radio interferometer, radio emission ABSTRAM A broadband (20 - 40 Mcs) radio interferometer with a (170 meter base, oriented east and wP-stq is described. The interfercmeter is intended for the in- vestigation of radio emission fran discrete sources and the cosmic background in the northern hemisphere by directivity-pattern scanning in a + 900 elevation sector and by using the earth's rotation. The interfei-ometer;'Iccnsists of 220 dipole plane arrays with ronote digital control of the directivity pattern in the meridional plane. The description covers the principles underlying the control of the bean and the awmition of the signalaq the arrmgwent of the antemaq the control eleaents 9 the antenna dimetivity. pattern$ the antenna effective area# and the wyWm. Vi3n. Ito large base fadlitates separation of the Boux .w radio Card 1/4 J ACCESSION UR: AP4039721 emission from the cosmic background. 1he two interferxmeter antennas are differ- ent and can be used separately. Me eastern one can be used as a transit instru- me-nt. By using the western antenna with bean scanning, it is possible to make two, or three records of a source passing through the azimuthal pattern, with intervals of 10 - 20 minutes. 7he resolution of the interference diapyam is 1. 6 - 0. 80 in direct ascension and 40 - 20 in declination, at fiequencies 20 - 40 Mcs. It is recamended that the antennas be used separately for the radio emission:of the cosmic backgaund, in which case the resolution is 4 211 in ascension and 34 170 in decLimation for the eastern antennat and 34 170 in ascension and 4 20; in decLirk-.ticn for the western antenna (both at 20 40 Some precautions neoessary in the operation of the nter are mmticned. Orig, at. hast 9 figures and 2 tables. ASSOCUTICK: Inftitut radiofiziki i elektrvdki AN UkrSSR (Institute of Radio- physics and ElecUmnicaq M UcrSSR) SUBH=.* MOO T Wi: 02 SLO COM-1 M9 EC NR REF SOW: 001 003 Card.----2/4_ AC(ZSSIO" N" AP4039721 RNCLMMIOI 1 2 3 12 3 Block diagram of the interferometer 1 - signal, 2 .,calibration, 3 control of directivity pattern IIYBq UHF receiver 0 north in .10 sott4h Card 3 4 az ACCESSION 14R, AP4039721 mmosum 1 02 0 Western interferometer antenna 1 - dipole, 2 underground collector, 3 junction for four elementai 5 - quadrant switdhj 6 - b1nary switch cell, 7 phase Shifter Card BAMLYAN, L.L.; BRUK, Y-a.M.; ZFTj'K-, I.!'., MENI, A.V.. - VIdeband hi,,"hly Airf-rticrall de-a7.eter wave arterina. Ziektro- Ev~aal 18. no.5-zi-,-.~l My I :7.-fl BAZELYAN L.L.; BRAUDE, S.Ya. ; KRYMKIN, V.V.; A.V.; SODIN, L.G. (SodinY L,H.] I I I - Frequency spectm. of discrete sourcen in th-9 decaneter radio wave band. Dop. AN UPSR no-5-.580-583 16 5. (MIRA 18:5) 1. Institut radiofiziki i elektroniki AN I'krSSR. 2. rhlen-korres- pondent AN UkrSSR (for Braudu)',. 4 Vi- e4 I 523. 16 1- AUTHOR, -Batelyan, L. L. Braude, S. Ya. Ve-,vsb erg.,. V. V Krymkin, V. V.; 14en A. V_ _S~SL 'TITLE: Investigati-6n of the spectra of discrete cosmic radio emission zources at f requdncies below ho me !SOURCE: Astronomicheskiy zhurnal, V. h2, no. 3, 1965, 618-628 -TAC C 'TOPIC osmic radio emission, -radio emission Bouraej,-radiq,emission meas- j xement --Tadio~tele scQpe-- ix T -v: -ABSIMACT - Th e spectra of 14 diterete.sour es.(in-the 20-4o-mc range) were 'n t' gated at the Radio Astronomy Observatory of the Institute of Radio Physics -from October i and Electronics,'Academy of Sciences UkrSSR, 1963 through juiy 1964. Al 1 obser"t-a-tions were made b tue, e n 2200 and 0800.hours local:time. 17h e radio tele'.~ Sao-,je 4mployed an. interferometer~.-and its antenna-system conaistad of - w eb t 0 vid an mulltielement -ele e ctr1cally phased arrays, each in asuring -176 x 17 M and spaced 470 m, apart on- an east-west:1ine. Each array1consisted,of es i .178 horizontal dipol Pattern width was -40- for 20- Mc and- 20 _f6r 110 Mc, Lobe dth-of the interference W! Ccird ACCESSION NI9. AP5015584 patt- n was "0 M d 0.80 for .40-M Peam declination along the meridian - i-r 1.60 f*or..; C an C rol delay. lines 711 e telescope radiometers were phase was regulated modulated by phase _cWting. the.signal.of one of.the antennas through 1800- at a ifreauency of 6o cps. The signals of each antenna were amplified by hf preamplifiers. The -Dassband of the pr6amplifiers and of the pnase shifter was about 20 Me. The adjustable --passbands of-the--four--radiometers made-it-possible to--recoTd each sources :.at-four-frequencies simultaneously (20 and 38 ; 5 M-0 - - The recordings 25,- 30-31 .1 were calibrat ed:with a standard-signal generator fed through a calibrated attenuator mcla-g ppTft`tiEr-t o -the- 11 ripii-:Uf puts -4VL.1- t Ife -8 0- ur es--v-ere--iraasurecL-by= Cora-.--; preamp - C the stand d flu- e- 3c 461 tcas--k), ~ihlch at 20-Mc is -,-paring.them with ar x -of soure 10-2-4 -,T/M2 cps Flux densities .10211 w/Me) and-th -rrors 450 X e mean-probable.e -th (A") for fourteen of~the sources.are listed in Table 3. of the Enclosure. On a 'b Sig, wid previous measurements of Cas-K, nus-A,-Virgo-A, and Ta s-A, asis of these uru Ithe spectra of--18 -discrete -sources can be divided into-two classes:-_spectra with a constant spectral index from 20 to'1400n- 3200-Mc (13 sources), and spectra with a spectral index which is a function of the frequency (5 sources). Orig'. art. has: -fi- -bs --and -2 tables- 3. gur Institut radiofiziki-i-elektroniki~Akademii nauk ASSOCIATION UkrSSR (Institvte- of Radio P of Science's i rd* 4 OR -is -AM15584 13S MTTED: ep64 SUB ENCL: 01 CODE:,4.4 EC 110 REF,SOV: OMR: 015~ "D PM S: 4046 Card 3/4 AP5013621 o Y _rCorresponelin ~AUTHOF41F 11 UILTSSR) IL~z ~eY4 L X, r1u, I _g member P Ril: & V-; Men A ~V Sodin, L. T G_ 15- -decameter radio band' e e, q u e n ey spectra of s am, discrete zources in the SlOt RCE:' 1W UkrESR. Dopovidi -no. 5~ 1.965, %0-58.~~ TIDPir, - TIOS radio - a st ion r) e e e gplactic radl~! rad1oA1_iecopej,.cosm1c radio soure on -radiation:flux of-six 1- ATPS7 ACT. The zestOft-s are p1resented of meamirements of the, Urr-ea In the 20-40 Mcs band. nl~ e measurements were obtained at the 'U'dastrondmical ob.-ervatory of' T Institute-of radiofiz:i~d i eleldroniki V-sics and Blec-tronics) Pal using a T-'Like band teldEpqr.)e operating a ~a merl.Oovial '21,1e te encrive -mark described in detail earlier (Izv. v..7, 215, 1964). The-ineasurements were-compared with the flux Casssioppa-A iibieh -~ms chosen as the.-standard., The spectra are found to be nc ~36if46d as bein L - he ar in -the _vhole frequency i~lanqe and can-1hus be C1 _g of-t -Aped-ra). t~. a that flia noureen. t tic Co- li it- I by he plac ordimttes zil'