NDLI: Stochastic Matched Filter outperforms Teager-Kaiser-Mallat for tracking a plurality of sperm whales

Content Provider	IEEE Xplore Digital Library
Author	Caudal, F. Glotin, H.
Copyright Year	2008
Description	Author affiliation: Syst. & Inf. Sci. Lab., Univ. of Toulon, La Garde (Caudal, F.; Glotin, H.)
Abstract	This paper compare two real-time passive underwater acoustic methods to track multiple emitting whales using four or more omni-directional widely-spaced bottom-mounted hydrophones. The Stochastic Matched Filter (SMF) is first used in the whale tracking. The SMF with an echo removal is compared to the Teager-Kaiser-Mallat (TKM) filter method. We briefly review the SMF and TKM theory, rough time delays of arrival are calculated, selected and filtered, and used to estimate the positions of whales for a constant or linear sound speed profile. The complete algorithm is tested on real data from the NUWC and the AUTEC. We evaluate the a priori performance of the system via the Cramer-Rao Lower Bound (CRLB) and Monte Carlo simulations. The CRLB and Monte Carlo simulations are computed and compared with the tracking results. SMF shows higher performance than TKM with more position estimated. Results is validated by similar results from the US Navy and Hawaii univ labs in the case of one whale, and by similar whales counting from the Columbia univ. ROSA lab in the case of multiple whales. The model is validated with good performances with the theoric CRLB and the computed confidence ellipses. At this time, our tracking method is the only one giving typical speed and depth estimations for multiple (4) emitting whales located at 1 to 5 km from the hydrophones.
Starting Page	1
Ending Page	9
File Size	1572333
Page Count	9
File Format	PDF
ISBN	9781424428151
DOI	10.1109/PASSIVE.2008.4786976
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-14
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Matched filters Military computing Delay effects Stochastic processes Whales Sonar equipment Nonlinear filters Underwater tracking Filtering theory Underwater acoustics
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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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