NDLI: Barankin bound for source localization in shallow water

Content Provider	IEEE Xplore Digital Library
Author	Tabrikian, J. Krolik, J.L.
Copyright Year	1997
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Duke Univ., Durham, NC, USA (Tabrikian, J.)
Abstract	Matched-field methods are known to have a severe ambiguity problem. In low signal-to-noise-ratios (SNRs), where the estimator cannot distinguish between the ambiguity function peak near the true source location and ambiguous ones, its mean square error deviates radically from the Cramer-Rao lower bound (CRLB). The Barankin bound for the source localization problem in an uncertain shallow water environment is derived. In particular, a method of selection of the test-points for evaluation of the bound is presented. The bound is evaluated using a "general mismatch" benchmark scenario. The results presented predict the threshold SNR below which the performance degrades dramatically. Channel uncertainties in the benchmark scenario are shown to increase this threshold SNR by as much as 3 dB.
Starting Page	499
Ending Page	502
File Size	405870
Page Count	4
File Format	PDF
ISBN	0818679190
ISSN	15206149
DOI	10.1109/ICASSP.1997.599684
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-04-21
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Water resources Acoustic sensors Signal processing algorithms Sensor arrays Mean square error methods Benchmark testing Conferences Eigenvalues and eigenfunctions Position measurement Degradation
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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