航空学报 > 2013, Vol. 34 Issue (2): 361-370   doi: 10.7527/S1000-6893.2013.0041

基于声矢量传感器阵列的鲁棒H空气流动 速度估计算法

陈诚, 陶建武   

  1. 空军航空大学 飞行器控制工程系, 吉林 长春 130022
  • 收稿日期:2012-01-17 修回日期:2012-05-02 出版日期:2013-02-25 发布日期:2012-10-27
  • 通讯作者: 陶建武 E-mail:jianwu.tao@gmail.com
  • 作者简介:陈诚,男,硕士研究生。主要研究方向:阵列信号处理及应用。Tel:0431-8695952,E-mail:wsccandy@gmail.com;陶建武,男,博士,教授,博士生导师。主要研究方向:阵列信号处理及应用,矢量传感器信号处理等。Tel:0431-8695952,E-mail:jianwu.tao@gmail.com
  • 基金资助:

    国家自然科学基金(61172126)

Robust H Estimation of Airspeed Based on Acoustic Vector Sensor Array

CHEN Cheng, TAO Jianwu   

  1. Department of Aircraft Control Engineering, Aviation University of Air Force, Changchun 130022, China
  • Received:2012-01-17 Revised:2012-05-02 Online:2013-02-25 Published:2012-10-27
  • Contact: 10.7527/S1000-6893.2013.0041 E-mail:jianwu.tao@gmail.com
  • Supported by:

    National Natural Science Foundation of China (61172126)

摘要:

研究了基于声矢量传感器阵列的空气流动速度测量问题。首先,根据声波在气流中的传播原理,求得声场中质点振速与空气流动速度的关系表达式,建立基于声矢量传感器线性阵列的测量模型。在此基础上,根据各个阵元输出信号之间的相位差,提出了基于鲁棒H滤波的空气流动速度估计算法,该算法通过各个阵元的信息迭代估计出空气流动速度。然后从理论上讨论了算法的初值选取,并分析了算法对随机扰动的鲁棒性。最后,计算机仿真表明该算法具有良好的鲁棒性和容错性。

关键词: 声矢量传感器阵列, 质点振速, 空气流动速度测量, H滤波, 初值选取

Abstract:

The measurement of airspeed based on an acoustic vector sensor array is studied in this paper. According to the propagation principle of acoustic waves in an air current, the relationships between particle velocity and air current velocity are first derived and a measurement model based on a linear acoustic vector sensor array is built. Then a novel approach for estimating airspeeds based on the robust H filter is proposed. By the phase lag between each sensor, the proposed algorithm is implemented as an iteration to estimate the airspeed. The selection of system initial parameters is discussed and the robustness against system perturbation is analyzed in theory. Finally, simulation results show that the proposed approach has excellent robustness and toleration of sensor failures.

Key words: acoustic vector sensor array, particle velocity, measurement of airspeed, H filtering, selection of initial parameters

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