Optimization of Direction-of-arrival Estimation of Single Pressure Gradient Vector Hydrophone

WANG Xu-hu;CHEN Jian-feng;HAN Jing;ZHANG Qun-fei

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  • Sponsored by: China Association for Science and Technology (CAST)

    Editor-In-Chief: Xu Yida

    ISSN 1000-1093

    　

  • Hosted By: China Ordnance Society

    Published By: Acta Armamentarii

    CN 11-2176/TJ

Acta Armamentarii, a Chinese monthly journal, was first published in 1979. The journal is supervised by China Association for Science and Technology, sponsored by China Ordnance Society，and edited and published by Editorial Board of Acta Armamentarii. The Journal is included in all important domestic databases，and also collected by Engineering Index (EI, USA), Chemical Abstracts (CA, USA), Science Abstracts (SA, UK）, Abstract Journal (AJ, Russia), and Current Bibliography on Science and Technology(CBST).Acta Armamentarii has been selected into the journal Of Ordnance Science and Technology (Weapons Industry) Field Of High Quality Scientific and Technological Periodical Classification Catalogue (2022 edition), ranking T1, and the journal of Automotive Engineering Field of High Quality Scientific and technological Periodical classification Catalogue, ranking T2.
Acta Armamentarii ›› 2014, Vol. 35 ›› Issue (3) : 340-346. DOI: 10.3969/j.issn.1000-1093.2014.03.008
Paper

Optimization of Direction-of-arrival Estimation of Single Pressure Gradient Vector Hydrophone

  • WANG Xu-hu1,2， CHEN Jian-feng1， HAN Jing1， ZHANG Qun-fei1
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Abstract

The performance of direction-of-arrival (DOA) estimation of single pressure gradient vector hydrophone degrades rapidly when the diameter-wavelength ratio is more than 0.2. A modified MUSIC algorithm for single pressure gradient vector hydrophone is presented, which improves DOA estimation performance by optimizing the steering vector of the pressure gradient vector hydrophone. Simulation results indicate that the estimation performance of the MUSIC algorithm is better than that of the sound intensity method, and the modified MUSIC algorithm for single pressure gradient vector hydrophone has better estimation performance and robustness compared with MUSIC algorithm when the diameter-wavelength ratio is more than 0.2. The results of the lake trial powerfully testify the validity of the modified MUSIC algorithm for single pressure gradient vector hydrophone.

Key words

information processing / pressure gradient vector hydrophone / DOA estimation / MUSIC algorithm

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WANG Xu-hu， CHEN Jian-feng， HAN Jing， ZHANG Qun-fei. Optimization of Direction-of-arrival Estimation of Single Pressure Gradient Vector Hydrophone. Acta Armamentarii. 2014, 35(3): 340-346 https://doi.org/10.3969/j.issn.1000-1093.2014.03.008

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