Accession Number : AD0165087

Title :   Apparatus and Method for Determining the Profile of an Underwater Target.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Gordon,Alan

Report Date : 20 NOV 1973

Pagination or Media Count : 7

Abstract : The invention relates to a device which obtains the spatial Fourier transform of an arbitrary pressure field which varies harmonically in time, but can vary in any manner whatsoever spatially. Involved in the use of the invention is a transducer which projects the sonic waves which are sent out to the target, and then are reflected back towards the projector. The reflected waves are then analyzed.

Descriptors :   *Underwater sound, *Acoustic detectors, *Patents, Fourier transformation, Pressure gages

Subject Categories : Acoustic Detection and Detectors
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE