Accession Number:

ADA011358

Title:

Signal Detection in Inhomogeneous Reverberation,

Descriptive Note:

Corporate Author:

TEXAS UNIV AT AUSTIN APPLIED RESEARCH LABS

Personal Author(s):

Report Date:

1971-04-01

Pagination or Media Count:

116.0

Abstract:

Signal-generated noise is called reverberation. Reverberation is considered to be a Gaussian process since the number of scatterers contributing to the process at a given time is generally large. However, for high-resolution sonar, the number of scatterers in the resolved area or volume may be so small as to result in a non-Gaussian process. The set of sonar returns resulting from consecutive projected pulses is generally considered to be a true ensemble. However, when the mean intensity varies from return to return, the set can no longer be considered to constitue a true ensemble. The overall objective of this study was to test the Gaussian and ensemble assumptions made about reverberation data at a carefully chosen smooth bottom site and to evaluate the performance of signal processors operating against the recorded reverberation.

Subject Categories:

  • Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE