Journal of Systems Engineering and Electronics ›› 2011, Vol. 33 ›› Issue (12): 2613-2617.doi: 10.3969/j.issn.1001-506X.2011.12.09

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Realization of MM-MUSIC algorithm with AccelDSP and its application in multi-beam bathymetry sonar

ZHOU Tian1,2,YANG Cheng3,LI Hai-sen2,YAO Yong-hong2   

  1. 1. National Defence Key Laboratory of Autonomous Underwater Vehicle Technology, Harbin Engineering University, Harbin 150001, China; 2. Science and Technology on Underwater Acoustic Laboratory, Harbin Engineering University, Harbin 150001, China; 3. Unit 92373 of PLA, Dalian 116500, China
  • Online:2011-12-19 Published:2010-01-03

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Abstract:

Conventional MUSIC algorithm is hard to be applied in MBBS for its great computational load, and most of the beamspace MUSIC algorithms need the estimation of the covariance matrix and eigenvalue decomposition, which leads to complex signal processing platform. To solve this problem, a MM-MUSIC algorithm is proposed on the combination of the fast subspace estimation based on MSWF and a MSB-MUSIC algorithm. Compared with MSB-MUSIC algorithm, the proposed MM-MUSIC algorithm has much fewer computational load and higher parallelism at a cost of a little loss of performance. The realization of fast subspace estimation with AccelDSP and the processing results of experiment data prove the efficiency and practicality of the MM-MUSIC algorithm.

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