Accession Number:

ADA063953

Title:

Passive Sonar Bearing Estimation in the Presence of Highly Anisotropic Noise, Fields,

Descriptive Note:

Corporate Author:

CATHOLIC UNIV OF AMERICA WASHINGTON D C ACOUSTICS GROUP

Personal Author(s):

Report Date:

1978-12-01

Pagination or Media Count:

178.0

Abstract:

The problem of sonar bearing estimation in the presence of highly anisotropic noise fields is examined for both conventional and optimal array processors. In some situations, the presence of one or more high level interfering noise source precludes bearing estimation by conventional, non-adaptive array processors. However, in some target tracking problems e.g. TMA the performance loss due to noise anisotropy is not total. In the context of such problems, the effects of multiple, unidirectional interferers on the conventional, split-beam tracker and the maximum likelihood estimator are investigated for linear receiving arrays.

Subject Categories:

  • Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE