Communications: directive radio wave systems and devices (e.g. – Radar transponder system – Unique identity
Patent
1990-07-09
1994-03-01
Sotomayor, John B.
Communications: directive radio wave systems and devices (e.g.,
Radar transponder system
Unique identity
342 50, 342160, G01S 1380
Patent
active
052912043
ABSTRACT:
A covert radar response system suitable for use with an illuminating coherent radar system having a moving target indicator subsystem shifts the phase and/or frequency of a retroreflected beam to transmit a message to the illuminating system that is not detectable by other observers in the vicinity.
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Sotomayor John B.
United Technologies Corporation
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