Passive Direction-of-Arrival Estimation under High Noise and Strong Interference Condition for Volumetric Array

IEEE TENCON 2013——To enhance the passive direction-of-arrival (DOA) estimation performance of a volumetric array in high noise and strong interference background, a new DOA estimation method based on Fourier integral method (FIM) and inverse beamforming (IBF) is proposed. This method combines the two methods and thus obtains the interference cancelling capability of IBF and the noise suppression ability of FIM simultaneously. Furthermore, the proposed method is generalized to be feasible for arbitrary volumetric array and also achieves the same robustness as the conventional beamforming (CBF). With theoretical analysis and computer simulations, it is shown that with the proposed method, the volumetric array can obtain better DOA estimation results in low signal-to-ratio (SNR) condition as well as in the presence of interferences, when compared to the conventional CBF method.

关键词： 傅立叶积分法 逆波束形成 新DOA估计方法 常规波束形成 CBF方法 IEEE TENCON 2013

主讲人：MA Qian 机构：Institute of Acoustic Engineering, Northwestern Polytechnical University

时长：0:13:42 年代：2013年