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Sensors 2009, 9(9), 6823-6834; doi:10.3390/s90906823

Research of DOA Estimation Based on Single MEMS Vector Hydrophone

1,* , 1
1 National Key Laboratory For Electronic Measurement Technology, North University of China, Taiyuan 030051, China 2 Key Laboratory of Instrument Science and Dynamic Measurement (North University of China) of Ministry of Education of China, Taiyuan 030051, China
* Author to whom correspondence should be addressed.
Received: 5 February 2009 / Revised: 29 June 2009 / Accepted: 24 August 2009 / Published: 31 August 2009
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The MEMS vector hydrophone is a novel acoustic sensor with a “four-beamcilia” structure. Based on the MEMS vector hydrophone with this structure, the paper studies the method of estimated direction of arrival (DOA). According to various research papers, many algorithms can be applied to vector hydrophones. The beam-forming approach and bar graph approach are described in detail. Laboratory tests by means of the a standing-wave tube are performed to validate the theoretical results. Both the theoretical analysis and the results of tests prove that the proposed MEMS vector hydrophone possesses the desired directional function.
Keywords: MEMS; piezoresistive effect; vector hydrophone; DOA estimation; beam-forming MEMS; piezoresistive effect; vector hydrophone; DOA estimation; beam-forming
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Zhang, W.D.; Guan, L.G.; Zhang, G.J.; Xue, C.Y.; Zhang, K.R.; Wang, J.P. Research of DOA Estimation Based on Single MEMS Vector Hydrophone. Sensors 2009, 9, 6823-6834.

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