Accession Number : AD0755473

Title :   Certain Digital Quadrature Signal Processing Techniques for Bandlimited Signals.

Descriptive Note : Research and development Jun 71-Jun 72,

Corporate Author : NAVAL UNDERSEA CENTER SAN DIEGO CALIF

Personal Author(s) : Grace,O. D.

Report Date : NOV 1972

Pagination or Media Count : 24

Abstract : The report discusses practical methods for signal processing bandpass signals by digital quadrature methods. These methods assume a sufficiently dense uniform sampling of a bandpass signal and include (1) extractions of quadrature samplings from uniform samplings, (2) polynomial interpolations in which the sampling frequencies f sub s > pi W ensure exact interpolation, and (3) error corrections for interpolations over a finite data base. Also included are applications to the problems of measuring the instantaneous envelope, phase, and frequency of bandpass signals. (Author)

Descriptors :   (*SONAR SIGNALS, INFORMATION THEORY), (*INFORMATION THEORY, DIGITAL SYSTEMS), BANDWIDTH, SIGNALS

Subject Categories : Cybernetics
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE