Digital Adaptive Interference Canceller.
Patent, Filed 28 Sep 88, patented 5 Feb 91,
DEPARTMENT OF THE NAVY WASHINGTON DC
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An interference canceller for cancelling an interfering signal generated by an interfering source from a transmission link between an antenna and a receiver. The interference canceller derives a sample of the interfering signal from the interfering source and down converts the sample to an intermediate frequency. A computer controlled delay path and computer controlled amplitude and phase modulator interactively adjusts a cancellation signal that is injected into the transmission link between the antenna and receiver to maximize the amplitude match between the cancellation signal and the interfering signal, and anti-phase the cancellation signal with respect to the interfering signal.
- Radio Communications