NDLI: Underwater signal detection in partially known ocean using short acoustic vector sensor array

Content Provider	IEEE Xplore Digital Library
Author	Hari, V.N. Anand, G.V. Premkumar, A.B. Madhukumar, A.S.
Copyright Year	2011
Description	Author affiliation: School of Computer Engineering, Nanyang Technological University, Singapore 639798 (Hari, V.N.; Premkumar, A.B.; Madhukumar, A.S.) \|\| Department of Electrical Communication Engineering, Indian Institute of Science, Bangalore 560012, India (Anand, G.V.)
Abstract	A new narrowband signal detection method called subspace detection (SD) [1] was proposed recently for achieving improved detection performance in shallow ocean. The SD method requires the knowledge of mode functions and modal wavenumbers of the ocean channel. In this paper we present three new methods of narrowband signal detection in a partially known ocean using an array of acoustic vector sensors (AVS). These methods require less prior information about the ocean channel; and yet they provide a better performance than SD especially at higher signal frequencies or shorter array lengths. Two of the new methods require only knowledge of sound speed at the sensor locations. The performance of the proposed methods is frequency-independent. These methods can be used with arrays in either horizontal or vertical configurations, and with either linear or circular geometries.
Starting Page	1
Ending Page	9
File Size	1039433
Page Count	9
File Format	PDF
ISBN	9781457700866
e-ISBN	9781457700880
DOI	10.1109/Oceans-Spain.2011.6003442
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-06
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Arrays Detectors Noise Oceans Acoustics Matrix decomposition Signal detection shallow ocean vector sensors detection array processing
Content Type	Text
Resource Type	Article

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