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Open AccessArticle

An Improved Azimuth Angle Estimation Method with a Single Acoustic Vector Sensor Based on an Active Sonar Detection System

by Anbang Zhao 1,2, Lin Ma 1,2, Xuefei Ma 1,2,* and Juan Hui 1,2
1
College of Underwater Acoustic Engineering, Harbin 150001, China
2
Science and Technology Underwater Acoustic Laboratory, Harbin 150001, China
*
Author to whom correspondence should be addressed.
Academic Editor: Xiaoning Jiang
Sensors 2017, 17(2), 412; https://doi.org/10.3390/s17020412
Received: 7 November 2016 / Revised: 15 February 2017 / Accepted: 16 February 2017 / Published: 20 February 2017
(This article belongs to the Section Physical Sensors)
In this paper, an improved azimuth angle estimation method with a single acoustic vector sensor (AVS) is proposed based on matched filtering theory. The proposed method is mainly applied in an active sonar detection system. According to the conventional passive method based on complex acoustic intensity measurement, the mathematical and physical model of this proposed method is described in detail. The computer simulation and lake experiments results indicate that this method can realize the azimuth angle estimation with high precision by using only a single AVS. Compared with the conventional method, the proposed method achieves better estimation performance. Moreover, the proposed method does not require complex operations in frequencydomain and achieves computational complexity reduction. View Full-Text
Keywords: active sonar detection system; single AVS; matched filtering; azimuth angle estimation; complex acoustic intensity measurement; time-domain processing active sonar detection system; single AVS; matched filtering; azimuth angle estimation; complex acoustic intensity measurement; time-domain processing
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Zhao, A.; Ma, L.; Ma, X.; Hui, J. An Improved Azimuth Angle Estimation Method with a Single Acoustic Vector Sensor Based on an Active Sonar Detection System. Sensors 2017, 17, 412.

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