Accession Number : ADD002859
Title : Self-Adjusting Digital Notch Filter.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C
Personal Author(s) : McCown,Rainer F
Report Date : 29 Jun 1976
Pagination or Media Count : 4
Abstract : The patent relates to digital filter auto-adjustment to variations in input signals achieved by normalizing the output of the second of two substantially identical series-connected digital filter stages and subtracting the normalized output of the second filter stage from its input to provide a measure of filter signal residue power. Deviations of the signal residue power from the preset limits of a signal residue power standard are detected and signals responsive thereto are used to appropriately adjust variable bandwidth constants in both filter stages.
Descriptors : *Bandstop filters, *Digital filters, *Patents, Setting(Adjusting), Self operation
Subject Categories : Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE