Title :
Research on acoustic vector sensor array MUSIC algorithm based on pretreatment of information in the field of array unit
Author :
Liang Guolong ; Ma Wei ; Wang Yilin ; Zhang Ke
Author_Institution :
Nat. Lab. of Underwater Acoust. Technol., Harbin Eng. Univ., Harbin, China
Abstract :
To improve the resolution of azimuth angle estimation using an Acoustic Vector Sensor Array (AVSA), a MUSIC algorithm based on AVSA is carried out. The performance of traditional MUSIC algorithm is improved in resolution of DOA, gain of AVSA, and ability of distinguishing multiple targets through pretreatment of pressure and particle velocity in array unit field. Analysis in theory and computer simulations show that the algorithm proposed is more effective in resolution of multiple targets, ability to suppress interference and accuracy in the case of low signal to noise ratio (SNR) than the traditional algorithm in isotropic noise field. The method has broader and more flexible applications compared with the early ones.
Keywords :
acoustic signal processing; array signal processing; direction-of-arrival estimation; interference suppression; signal classification; underwater acoustic communication; AVSA; DOA resolution; SNR; acoustic vector sensor array MUSIC algorithm; array unit field; azimuth angle estimation; computer simulations; directions-of-arrival estimation; information pretreatment; interference suppression; multiple signal classification; signal-to-noise ratio; underwater acoustic signal processing; Acoustics; Arrays; Direction of arrival estimation; Estimation; Multiple signal classification; Signal processing algorithms; Vectors; DOA; MUSIC; acoustic vector array; pretreatment of array unit information;
Conference_Titel :
Computer Science and Automation Engineering (CSAE), 2012 IEEE International Conference on
Conference_Location :
Zhangjiajie
Print_ISBN :
978-1-4673-0088-9
DOI :
10.1109/CSAE.2012.6272568