Accession Number : AD0750755

Title :   Resolution Limitations of a Random Inhomogeneous Medium.

Descriptive Note : Technical rept.,

Corporate Author : SACLANT ASW RESEARCH CENTRE LA SPEZIA (ITALY)

Personal Author(s) : Hovem,Jens M.

Report Date : 01 SEP 1972

Pagination or Media Count : 25

Abstract : Signals transmitted through a random and inhomogeneous medium will suffer from wavefront distortion and from time and frequency dispersion. This will generally impair the resolution with which target position and doppler can be determined. Treating the resolution properties by means of ambiguity functions, the effects on range, angle and doppler resolution of a particular simple type of random medium are considered. The effect of time and frequency dispersion on the range-doppler ambiguity function is first reviewed. The effects that a random and spatially-dependent medium can have on range and angle resolution is discussed. (Author)

Descriptors :   (*SONAR TARGETS, RESOLUTION), SOUND TRANSMISSION, UNDERWATER SOUND, DOPPLER EFFECT, INFORMATION THEORY, TRANSFER FUNCTIONS

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE