Clutter subtraction system

Details Clutter subtraction system Clutter subtraction system

1976-09-24

1977-12-20

Tubbesing, T.H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

G01S 702

Patent

active

040645118

ABSTRACT:
A radar system having transmitted and received signals, the system including a feedback loop for modulating a sample of the transmitted signal to duplicate the phase and amplitude of the clutter echoes from nearby points of reflection. The modulated transmitted sample is subtracted from the received signal to remove the clutter. The feedback loop detects differences between the clutter-free signal and the transmitted sample to produce an error signal, the error signal being filtered and applied to the modulator for modulating the phase and amplitude of the transmitted sample.

REFERENCES:
patent: 3953849 (1976-04-01), Couvillon

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