Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1969-01-07
1976-02-24
Hubler, Malcolm F.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 172R, G01S 736
Patent
active
039407683
ABSTRACT:
An electronic signal processing device comprised of timing and coincident ting means for utilization between one or more conventional radar receivers and a conventional visual display, multi-gun pulse analyzer to enable an electronic intelligence operator to perform precise real time measurement of the pulse repetition interval (PRI) and its counterpart, pulse repetition frequency (PRF), for any one of a group of radar signals in a multi-signal environment. The device provides an automatic gating loop for separating the received radar video signals into various known preset PRI-PRF bands, an electronic chopping circuit for enabling the device to produce an interleaved, panoramic display of all of the radar video signals within any one of the preset bands on a visual display pulse analyzer, various single-shot multivibrator and gating means for producing necessary synchronizing pulses, and a variable delay unit and pulse generator for selecting a single video signal from the panoramic display for closer examination on an expanded scale of the multi-gun analyzer and for producing a marking pulse which may be positioned by the operator to obtain an indication of the PRI and PRF of the selected signal from a calibrated dial of the variable delay unit.
REFERENCES:
patent: 3021523 (1962-02-01), Davis et al.
patent: 3105192 (1963-09-01), Messin et al.
patent: 3117317 (1964-01-01), Kenyon
patent: 3321759 (1967-05-01), Freedman
Olsen Robert C.
Stahlhut Frederick O.
Collignon Paul S.
Hubler Malcolm F.
Sciascia R. S.
The United States of America as represented by the Secretary of
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