Accession Number : ADD003284

Title :   Apparatus for the Generation of a High Capacity Chirp-Z Transform.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Speiser,Jeffrey M ; Whitehouse,Harper J ; Alsup,James M

Report Date : 09 Dec 1975

Pagination or Media Count : 10

Abstract : The patent describes apparatus for performing a high-capacity two-dimensional, chirp-z transform, suitable for the signal processing of radar and sonar signals, comprising: an (N sub 2) plurality of two-dimensional partial chirp-Z transform devices; an acoustic surface-wave demultiplexer and chirp multiplier, whose inputs comprise all the outputs of the partial transform devices; an acoustic surface-wave discrete chirp filter, whose input comprises the output of the demultiplexer and chirp multiplier; and an output multiplier whose two inputs comprise the output of the surface-wave demultiplexer and chirp multiplier and the output of the acoustic surface-wave discrete chirp generator, the output of the output multiplier comprising the terms of a one-dimensional chirp-z transform in a linear congruential scan.

Descriptors :   *Signal generators, *Patents, Signal processing, Sonar signals, Radar signals, Acoustic delay lines

Subject Categories : Line, Surface and Bulk Acoustic Wave Devices
      Acoustic Detection and Detectors
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE