Stationary interference cancellor

Details Stationary interference cancellor Stationary interference cancellor

1990-08-31

1993-05-04

Kuntz, Curtis

Pulse or digital communications

Spread spectrum

Direct sequence

381103, 375 99, H04B 110

Patent

active

052088375

ABSTRACT:
A stationary interference cancellor utilizes a programmable digital signal processor with cancelling software to provide the required combinations of time delay and filtering to perform interference cancelling. The digital signal processor continually analyzes the information spectrum and builds cancellation filters around stationary undesirable signals. By reducing the size of the delay and by adding an FIR shaping filter and automatic gain control at the output of the circuitry, interference cancelling performance is greatly improved.

REFERENCES:
patent: 4571732 (1986-02-01), Pirani et al.
patent: 4649505 (1987-03-01), Zinser, Jr. et al.
patent: 5001727 (1991-03-01), McDavid

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