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兵工学报 ›› 2014, Vol. 35 ›› Issue (8): 1236-1242.doi: 10.3969/j.issn.1000-1093.2014.08.016

• 论文 • 上一篇    下一篇

声矢量阵阵元姿态误差自校正算法研究

梁国龙1,2, 张柯1,2, 安少军1,2, 范展1,2   

  • 收稿日期:2013-10-11 修回日期:2013-10-11 上线日期:2014-11-03
  • 作者简介:梁国龙(1964—),男,教授,博士生导师
  • 基金资助:
    国家自然科学基金项目(51279043、51209059、61201411);黑龙江省普通高校青年骨干支持计划项目(1253G019)

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

LIANG Guo-long1,2, ZHANG Ke1,2, AN Shao-jun1,2, FAN Zhan1,2   

  1. (1.Science and Technology on Underwater Acoustic Laboratory, Harbin Engineering University,Harbin 150001, Heilongjiang,China;2.College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang,China)
  • Received:2013-10-11 Revised:2013-10-11 Online:2014-11-03

摘要: 在实际情况下,声矢量阵存在阵元姿态误差。为充分认知阵元姿态误差,分析阵元姿态误差对声矢量阵波束图的影响。针对有源校正算法受限于实际的工作环境,提出了一种声矢量阵阵元姿态误差自校正算法。该算法通过非线性迭代使目标函数最小化,从而实现阵元姿态误差参数和信源波达方向(DOA)的联合估计。大量计算机仿真结果表明,该自校正算法具有良好的参数估计及快速收敛性能。

关键词: 声学, 阵列信号处理, 声矢量阵, 阵元姿态误差, 自校正, 波束图, 波达方向估计

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