Azimuth Angle Estimation based on Joint Processing of Acoustic Pressure and Analytic Velocity
In this paper,an improved joint processing algorithm based on Estimation of Signal Parameters via Rotational Invariance Technique(ESPRIT),which can efficiently combine acoustic pressure and analytic velocity,is proposed to estimate azimuth angle.This method can be applied in acoustic vector sensor array(AVSA)of any formation.A novel crosscovariance matrix of acoustic pressure and analytic velocity is constructed and the ESPRIT algorithm based on total-leastsquares(TLS)criterion is used to determine the azimuth angle of incident signals in a background noise.By using the coherency between acoustic pressure and particle velocity,this algorithm could suppress interference well in isotropic noise field.Simulations show that the proposed algorithm is more efficient than existing algorithms especially in low-SNR environment.
Azimuth angle estimation analytic velocity AVSA joint processing ESPRIT
Lang Ge Ke Xu Jianwei Wan Yong Chen Gang Li
College of Electronic Science and Engineering National University of Defense Technology Changsha,China
国际会议
重庆
英文
1052-1056
2017-03-25（万方平台首次上网日期，不代表论文的发表时间）