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Fredericks; Duane G.
Lockport, NY
No. of patents:

Patent Number Title Of Patent Date Issued
6507312 Process for evaluating phased array antennas January 14, 2003
A process for evaluating the radar pattern of a phased array antenna subsystem by utilizing transmissions from a global positioning satellite. This process utilizes a delayed radar target on a moving platform, a remote differential global positioning receiver on the moving platform, a
6492939 Phase coherent optically delayed radar target December 10, 2002
A radar target with delayed reply means. The radar target contains devices for: (a) receiving a radar signal which has a frequency of from about 0.5 to about 94 gigahertz, (b) phase coherently amplitude modulating a continuous wave light emission with the radar signal with the frequency
5351054 Radar target with delayed reply means September 27, 1994
An apparatus for producing an electromagnetic signal which simulates the radar signature of a vertical takeoff and landing vehicle is disclosed. The apparatus contains a means for receiving a radar signal, modulation means for modifying the radar signal, means for dividing the modulated
5164734 Radar target with delayed reply means November 17, 1992
An active radar target device is disclosed. This device contains a means receiving a radar signal, a means for decreasing the frequency of the radar signal received, at least one means for delaying the reduced frequency radar signal, means for increasing the frequency of the delayed

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