基于声矢量传感器阵列的鲁棒H∞空气流动 速度估计算法

doi:10.7527/S1000-6893.2013.0041

Abstract

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

CLC Number:

V219
TN06

CHEN Cheng, TAO Jianwu. Robust H_∞ Estimation of Airspeed Based on Acoustic Vector Sensor Array[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013, 34(2): 361-370.

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Robust H_∞ Estimation of Airspeed Based on Acoustic Vector Sensor Array

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Robust H∞ Estimation of Airspeed Based on Acoustic Vector Sensor Array

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Robust H_∞ Estimation of Airspeed Based on Acoustic Vector Sensor Array