Communications: directive radio wave systems and devices (e.g. – Radar ew
Patent
1995-07-10
1996-07-09
Sotomayor, John B.
Communications: directive radio wave systems and devices (e.g.,
Radar ew
342 99, G01S 740, G01S 7285
Patent
active
055348661
ABSTRACT:
A method for determining a constant classification parameter for a radar is described; this parameter uniquely characterizes and identifies the radar being monitored. The method does not require the use of navigation or orientation information concerning the observer platform. The emitter pulse repetition frequency (PRF) provides a clock signal to allow measurement of the number of cycles of emitter carrier occurring in a predetermined interval. This value is the same at the emitter and at the observer and forms the aforementioned classification parameter. The classification parameter is additionally used to detect the presence of countermeasures designed to defeat passive Doppler emitter location.
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Lett Gerald L.
Litton Systems Inc.
Sotomayor John B.
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