基于声矢量传感器阵列的鲁棒H∞空气流动 速度估计算法
收稿日期: 2012-01-17
修回日期: 2012-05-02
网络出版日期: 2012-10-27
基金资助
国家自然科学基金(61172126)
Robust H∞ Estimation of Airspeed Based on Acoustic Vector Sensor Array
Received date: 2012-01-17
Revised date: 2012-05-02
Online published: 2012-10-27
Supported by
National Natural Science Foundation of China (61172126)
陈诚 , 陶建武 . 基于声矢量传感器阵列的鲁棒H∞空气流动 速度估计算法[J]. 航空学报, 2013 , 34(2) : 361 -370 . DOI: 10.7527/S1000-6893.2013.0041
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.
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