Accession Number : ADD006389

Title :   Digital Sidelobe Weighting Technique.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Kretschmer, Frank F ; Lewis, Bernard L

Report Date : 20 Aug 1979

Pagination or Media Count : 20

Abstract : This document discloses apparatus and a method for weighting a digital Fast Fourier Transform (FFT) circuit to reduce the sidelobe response. The weighting is done by simple shifts of the decimal point of the input digital words to the FFT. By using a decimal-point shift-weighting system, many expensive multiplier circuits can be eliminated. (Author)

Descriptors :   *PATENT APPLICATIONS, *SIGNAL PROCESSING, *FAST FOURIER TRANSFORMS, DIGITAL SYSTEMS, WEIGHTING FUNCTIONS, SIDELOBES, REDUCTION, CIRCUIT ANALYSIS, FREQUENCY RESPONSE, DIGITAL FILTERS

Subject Categories : Cybernetics

Distribution Statement : APPROVED FOR PUBLIC RELEASE