Accession Number : ADA306014

Title :   Spectral Correlation Properties of Time Series Due To An Acoustic Source Moving Through An Oceanic Waveguide.

Descriptive Note : Final rept.,

Corporate Author : NAVAL COMMAND CONTROL AND OCEAN SURVEILLANCE CENTER RDT AND E DIV DETACHMENT WARMINSTER PA

Personal Author(s) : Reuter, M.

PDF Url : ADA306014

Report Date : FEB 1996

Pagination or Media Count : 31

Abstract : The time series representing the acoustic energy received at two sensors due to a source moving through an oceanic waveguide can exhibit strong spectral correlation between different frequencies. This correlation can be exploited to enhance passive detection of moving targets particularly in shallow water and near field environments. The structure of this spectral correlation is derived in this document. It is also shown that established techniques can estimate the spectral correlation from time series. This algorithm is assessed on real underwater acoustic data. Excellent agreement is observed with theory.

Descriptors :   *WAVEGUIDES, *UNDERWATER ACOUSTICS, *ACOUSTIC SURVEILLANCE, ALGORITHMS, TWO DIMENSIONAL, TIME SERIES ANALYSIS, MOVING TARGETS, PASSIVE SYSTEMS, SHALLOW WATER, CORRELATION, ACOUSTIC ARRAYS, ACOUSTIC DATA, NEAR FIELD.

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE