Accession Number : ADD017700

Title :   Self-Adapting Filter.

Descriptive Note : Patent, Filed 15 Dec 93, patented 11 Jul 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Bond, James W

Report Date : 11 Jul 1995

Pagination or Media Count : 7

Abstract : The Self Adapting Filter is an adaptive interference suppression device that can be used to extract band spread communication signals from a received signal containing significant structured interference. The filter processes signal quantities consisting of in phase and quadrature (real and imaginary) components of received signal baseband samples. Process weights are calculated directly from the symmetric differences of the signal samples. Calculating the statistics of the samples is not necessary, nor is the calculation and use of signal sample magnitude and phase. By processing components of the received signal baseband samples directly, a simple implementation of an approximate locally optimum processing algorithm is possible enabling simple filter hardware and operation. All processing can be pipelined.

Descriptors :   *ADAPTIVE FILTERS, *RADIOFREQUENCY FILTERS, *PATENTS, ALGORITHMS, OPTIMIZATION, PROCESSING EQUIPMENT, SAMPLING, INTERFERENCE, RADIO SIGNALS, SPREAD SPECTRUM, SUPPRESSORS

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE