H - Electricity – 04 – B
Patent
H - Electricity
04
B
325/45
H04B 7/10 (2006.01) H04B 7/00 (2006.01)
Patent
CA 1136711
STEINBER-1 ADAPTIVE CROSS-POLARIZATION INTERFERENCE CANCELLATION ARRANGEMENTS Abstract The present invention relates to an adaptive cross-polarization cancellation arrangement where a first desired polarized signal and a second interfering orthogonally polarized signal, including cross-polarization components, are concurrently received at an antenna. In the present arrangement, the orthogonally polarized components of the received signal are separated and transmitted along separate paths and recombined after the phase and amplitude of the separated polarized interfering signal sample has been appropriately adjusted for maximally cancelling cross-polarization components thereof in the other path. A feedback path includes circuitry for obtaining a sample of any remaining interfering signal in the recombined output signal, generating a signal representative of the power envelope of such sample, and then generating appropriate control signals in response to such representative of the power envelope signal to provide improved adjustment of the amplitude and phase of the separated polarized interfering signal sample.
361055
Kirby Eades Gale Baker
Western Electric Company Incorporated
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