Accession Number:

AD1113571

Title:

Channel Sensitive Processor: Sensitivity and Optimization Study

Personal Author(s):

Corporate Author:

SACLANT UNDERSEA RESEARCH CENTRE LA SPEZIA (ITALY) LA SPEZIA Italy

Report Date:

1997-10-01

Abstract:

The detection performance of the Channel-Sensitive Processor CSP has been tested in dense multipath conditions. It was demonstrated that, for a known propagation channel, the CSP outperforms the conventional matched filter technique. However, in an uncertain environment, the probability of detection decreases according to the degree of mismatch between the assumed and the actual channel characteristics. It was found that the processor is more sensitive to geometric parameters source range and depth than to environmental parameters sound velocity profile, sediment-subbottom interface, sediment thickness. To overcome the performance degradation due to channel mismatch, the CSP method was utilized in conjunction with two global optimization algorithms the classical simulated annealing SA and a multi-layer simulated annealing MUSA method. At the expense of processing time, it has been found that the optimization methods reduce the channel mismatch effect and improve considerably the detection performance of the CSP.

Descriptive Note:

Technical Report

Supplementary Note:

01 Jan 0001, 01 Jan 0001, DTIC Crawl

Pages:

0042

Communities Of Interest:

Modernization Areas:

Distribution Statement:

Approved For Public Release;

File Size:

4.02MB