Research on Self-calibration Algorithm for Attitude Errors of Acoustic Vector Sensor Array

doi:10.3969/j.issn.1000-1093.2014.08.016

Abstract

Abstract: In practice, the attitude error exists in acoustic vector sensor array (AVSA). The influence of attitude error on the AVSA beam pattern is theoretically analyzed to fully recognize the attitude error. Since off-calibration algorithm is limited to the actual work environment, a self-calibration algorithm of attitude error is proposed. The algorithm can estimate the attitude error parameter and DOA of sources simultaneously by utilizing nonlinear iteration to minimize the objective function. Numerous computer simulations verifieds the good parameter estimation performance and fast convergence rate of the proposed algorithm.

Key words: acoustics, array signal processing, acoustic vector sensor array, attitude error, self-calibration, beam pattern, DOA estimation

LIANG Guo-long, ZHANG Ke, AN Shao-jun, FAN Zhan. Research on Self-calibration Algorithm for Attitude Errors of Acoustic Vector Sensor Array[J]. Acta Armamentarii, 2014, 35(8): 1236-1242.

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