吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (5): 1453-1459.doi: 10.7964/jdxbgxb201405037

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2D direction of arrival estimation with acoustic vector sensor array based on quarternions MUSIC algorithm

LI Xin-bo1,SUN Hai-xin2,LI Xiao-qing1,ZHAO Yang1,LIANG Liang1,FANG Xiao-peng1   

  1. 1.College of Communication Engineering, Jilin University,Changchun 130022,China;
    2.College of Electronics and Information Engineering ,Changchun University 130022, China
  • Received:2013-08-21 Online:2014-09-01 Published:2014-09-01

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Abstract: The similarity between the steering vector and quaternion of acoustic vector sensor is utilized to derive and establish the quaternion expressing form of the steering vector, and the quaternion model of the acoustic vector sensor array is proposed. Moreover, the orthogonality of the steering vector and noise subspace is theoretically analyzed. Based on the quaternion Multiple Signal Classification (MUSIC) spatial spectrum, a 2-D Direction of Arrival (DOA) estimation method is proposed. Experiment results show that the resolution of the quaternion MUSIC algorithm is better than that of the vector MUSIC algorithm. In low Signal-to-Noise Ratio (SNR), the quaternion MUSIC algorithm has higher accuracy of DOA estimation. At the same time, this method can be applied not only to the L-shape array and plane array, but also to other array formations.

Key words: information processing, quaternion, acoustic vector sensor, MUSIC algorithm, DOA estimation

CLC Number: 

  • TN911.7
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