Accession Number : ADD008431

Title :   Adaptive Line Enhancer.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : McCool,John M ; Widrow,Bernard ; Zeidler,James R ; Hearn,Robert H ; Chabries,Douglas M

Report Date : 09 Dec 1980

Pagination or Media Count : 9

Abstract : An adaptive filter for spectral line enhancing comprises a delay line for delaying an input signal X(j) by a fixed time delay. A transversal filter, whose input is connected to the output of the delay line, filters the delayed signal, the output of the filter comprising a signal Y(j). A summer, having its inputs to signals X(j) and Y(j) subtracts the signal Y(j) from X(j), the output of the summing means being the error signal epsilon(j). A multiplier having a gain of mu multiplies the input signal epsilon(j) by a gain of mu, the output of the multiplier being fed back to the filter, to cause the weights to be readjusted.

Descriptors :   *Patents, *Adaptive filters, *Signal processing, Narrowband, Optimization, Recursive functions

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE