Accession Number : ADD001805

Title :   Adaptive Low Pass Filter.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Cantrell,Ben H

Report Date : 10 Jun 1975

Pagination or Media Count : 8

Abstract : The patent describes an adaptive low-pass recursive filter which adaptively changes its bandwidth filtering characteristics in accordance with the bandwidth of the incoming signal. This results in an input signal w(k) changed into output signal x(k) in accordance with the equation x(k) = a(k) x(k-1) + (1-a(k)) w(k), where k is a sampling-interval and a is the adaptive value representing ratio of known noise power to average error between the filter input and output.

Descriptors :   *Low pass filters, *Patents, Recursive filters, Adaptive systems

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE