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National Key Laboratory For Electronic Measurement Technology, North University of China, Taiyuan 030051, China

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Key Laboratory of Instrument Science and Dynamic Measurement North University of China of Ministry of Education of China, Taiyuan 030051, China





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Author to whom correspondence should be addressed.



Abstract 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. View Full-Text

Keywords: MEMS; piezoresistive effect; vector hydrophone; DOA estimation; beam-forming MEMS; piezoresistive effect; vector hydrophone; DOA estimation; beam-forming





Autor: Wen Dong Zhang 1,2, Ling Gang Guan 1,* , Guo Jun Zhang 1, Chen Yang Xue 1,2, Kai Rui Zhang 2 and Jian Ping Wang 2

Fuente: http://mdpi.com/



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