Research of DOA Estimation Based on Single MEMS Vector Hydrophone

Sensors

Wen Dong Zhang²  Ling Gang Guan²  Guo Jun Zhang²  Chen Yang Xue²  Kai Rui Zhang¹ 

[1] Key Laboratory of Instrument Science and Dynamic Measurement (North University of China) of Ministry of Education of China, Taiyuan 030051, China; E-Mails:;National Key Laboratory For Electronic Measurement Technology, North University of China, Taiyuan 030051, China; E-Mails:

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

DOI  :  10.3390/s90906823

来源: mdpi

【 摘 要 】

The MEMS vector hydrophone is a novel acoustic sensor with a “four-beam-cilia” 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.

【 授权许可】

CC BY   
© 2009 by the authors; licensee MDPI, Basel, Switzerland