TRIP REPORT - (SANITIZED) CONTRACT RD-161, TASK ORDER 3, FREQUENCY TO TIME TRANSFORMATION STUDY

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-03424A001200060012-1
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 22, 2016
• Document Release Date: August 2, 2012
• Sequence Number: 12
• Publication Date: August 22, 1960
• Content Type: MEMO

Declassified in Part- Sanitized Copy Approved forRelease2012/08/02 : CIA-RDP78-03424A001200060012-1
"Illetrr-CONFIDENTIAL
Office Memorandum ? UNITED STATES GOVERNMENT
TO : The Files
FROM :
SUBJECT: Trip Report
Contract RD-1 as ? ?er Frequency to Time Transformation Study
DATE: 22 August 1960
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1. On 17 August 1960 the undersigned and SPS/EA, moni-
tored progress on the frequency-domain-to-time-domain transformation study
ucted by
Discussions on this program were held with:
2. are the engineers primarily respon-
sible for the investigation techniques being studied under this contract.
Most of the time, to date, has been spent in reasoning out the logical design
of the circuitry for accomplishing the frequency to time transformation. It
has been found that in sending a signal through the compressive networks,
there are formed, inevitably, low-power sidebands which extend to both sides
of the main spike. Since it is desired to be able to gate out a signal while
the information is in the time domain, and since gating out of only the spike
results in elimination of only 90 per cent of the signal, it is felt that it
will be necessary to investigate additional shaping of the spike with filter
networks in order to eliminate these sidebands from the time domain.
has several techniques in mind which may be useful in accomplish-
ing this end. The design for the breadboard circuitry has been essentially
completed, and components and packaging have been ordered.
3. For experimental purposes a possible operational requirement was
given to the contractor which necessitated the gating out of all signals in
excess of a certain given amplitude. In other words, all high power signals
will be eliminated and the information of the low power signals, which would
be the signals of interest, could be analyzed without distortion. It appears
now that this may be a rather difficult job to accomplish since the low ampli-
tude signals tend to have lower signal to noise ratios and are subsequently
more difficult to analyze. It is felt by the contractor that perhaps this
form of investigation should be held off for the present until some degree of
sucass has been achieved with easier problems. The most apparent example,
requiring a relatively simple technique, would be a shaping device in which
all of the signals below a certain amplitude are gated out in the time domain,
NADEAMAL
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Declassified in Part - Sanitized Copy Approved for Release 2012/08/02 : CIA-RDP78-03424A001200060012-1
Declassified in Part - Sanitized Copy Approved for Release 2012/08/02 : CIA-RDP78-03424A001200060012-1
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SUBJECT: Trip Report -
Contract RD-1511 Task Order 31 Frequency to Time Transformation Study
while signals over this threshold would be reconstituted in the frequency
domain for analysis. This problem will be discussed with the interested
divisions to determine the most desirable direction for the contractor to
follow.
Distribution:
e,R+D Subject File
R+D Lab
SPS/EA.
Monthly (2)
EP Chrono
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Declassified in Part - Sanitized Copy Approved for Release 2012/08/02 : CIA-RDP78-03424A001200060012-1