Adaptive jamming-signal canceler for radar receiver

Details Adaptive jamming-signal canceler for radar receiver Adaptive jamming-signal canceler for radar receiver

1982-05-10

1985-10-01

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343384, G01S 736

Patent

active

045449260

ABSTRACT:
A radar receiver, associated with a transmitter sending out circularly or linearly polarized waves, has two parallel channels for the respective processing of incoming echo signals derived from incident waves with mutually orthogonal linear (e.g. horizontal and vertical) polarization. For the suppression of interfering signals from a jammer, each channel includes an adaptive compensator generating a cancellation signal from the incoming signal of the other channel and from a feedback signal originating at the output of its own channel; this cancellation signal is subtracted from the incoming signal received by the respective channel. The resulting purged signals are fed to a channel selector which compares their power and directs the momentarily predominating signal to a load.

REFERENCES:
patent: 4170009 (1979-10-01), Hamer
T. A. Bristow; Application of an Interference Cancellation Technique to Communications and Radar Systems; Sep. 1979; Systems Technology, No. 32, pp. 38-47.
Nathanson, Fred E., "Adaptive Circular Polarization" 1975, IEEE International Radar Conf. in Washington, D.C., FIG. 1.

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