MONTHLY ENGINEERING REPORT NO. 6 IMPROVEMENT OF(SANITIZED)

Document Type: 
Collection: 
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP78-03300A001600030013-6
Release Decision: 
RIPPUB
Original Classification: 
S
Document Page Count: 
2
Document Creation Date: 
December 22, 2016
Document Release Date: 
February 8, 2012
Sequence Number: 
13
Case Number: 
Publication Date: 
March 31, 1961
Content Type: 
REPORT
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PDF icon CIA-RDP78-03300A001600030013-6.pdf145.08 KB
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Declassified in Part - Sanitized Copy Approved for Release 2012/02/08: CIA-RDP78-0330OA001600030013-6 CONFIDENTIAL poont r Engineering Rs3port No. 6 s.mp 7emem t of Wide-Band : Radar De tget&on TecY r.q e Period Covered 1 March 1961 to .334. March 1961 DOCUMENT NO. NO CHANGE IN CLASS. O C{ DECLASSIFIED CLASS. CHANGED TO: TS S NEXT REVIEW DATE: AUTH: H 70? DATE,- REVIEWER. 010956 - 491. WARNING: This docum-at contains informer wion affeo the national daf'anse of the United States within the meaning of the Espionage Laws. Title 18, U.S-C,9,, Sections 793 and 794? Its transmission or the revelation of Its contents in any raper to an unaithorized person is prohibited by law. CONFIDENTIAL CONTROL NUMB$R . U F .~ Page 1 of 2 pagee Declassified in Part - Sanitized Copy Approved for Release 2012/02/08: CIA-RDP78-0330OA001600030013-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/08: CIA-RDP78-03300A001600030013-6 This report covers the s=ue' period iii"' '6 ntract activity for Improvement of FM Rader Detection Techniques. The job has been staffed by a Conmmlti.ng Project Engineer and a Senior Engineer working part .ire as regal cd. Four full -time engineers complemenrt the contract staff. The period has been devoted to a continuation of efforts of the laat period. Activities of the Report Period A broasa Jared vorrady trrm>el.ator has been corestvucted using a traveling wave tube in the 1A to 2.4 Lau: range. While this range is not compatible with the 'agar ystova. the asork has pcrritted the evaluation of the broadband technione ?te th a:dstiag er igaent. 1M feasibility of the device has been demonet "at t ? nd a nronrt1 basis hze been established for attempting to implement a. device in the appropriate frequency range, 12.1 to 18 I. The translation achieve,-' to date provided a I me shift in the input, frequency with a maxl>esm eUppreseLa . of input frequency aird cross products of 17 db. This translation end suppression was achieved by t ransi ~t3.me modulation of the TWT helix voltage ' tl?. a se too h vo. t e. T 20?> Ta Jf s r tooth was applied at a 1 me sweep rate. Flyback tine of the s :,:rto~~i h was approximately ld of the sweep period. Scum improve ae t in m s ior~ ray be, obtained by Improiring the flyback characteristic. Work is c=~6?';~.; l1.", g ort than approaab., 'flaying comp:~.etnd the design fox- tae Ugh voltage sweep circuit for the back ard-i a e o ci: ] fi.on, attention Is now directed for future effort to .include the high voltage source rind power rupple" necessary for the circuit operation., Fac:d~ g .9sg T-7U 2 then follow. Breadboard -roue c ontirrues on the ar five filter. ' r d the associated sampl4 "g and readout circuitry. Two approachec are, bsix g talmn for the filters. One utilizes a Bridge T mill netuor.c as the frequency sensitive element alone; the second would utilize the .: c-a4e element in P. degenerative feedback loop with high gain. The first has been -,aceessfu ly tested; the second is now being developed. n nte tai ate of system design are ro dependent upon the area resolution that the type o4' scanning syst required dofires the system philosophy. The present approach 1s dependent upon a well defined RF beam Impinging on the surface of interrogation. The appl3r,Gbil3 t5' of such an approach depends on the ability to provide a sharply foounc . seen. Fs.lisa3ra.ry investigations have been conducted on antenna types to serve time purpo::o. T o methods have same promises these employ lenses or ellipsoidal re.flectors. Size and weight are the factors of concern in these types, although u,3e of these would servo to evaluate the needs. Program for the Ersselhg Month. Continued development and packaging tril.1 provide the effort for the succeeding period. I fort; will be directed toward procurement of a suitable traveling wave tube for the translation scheme. Packaging of the BWO power supply follows. The fi.ltoring, tLaing and sampling component development Will be continued. ON FI FNTIAL' 17, 7d, L Page 2 of 2 Declassified in Part - Sanitized Copy Approved for Release 2012/02/08: CIA-RDP78-03300A001600030013-6