earticle

영어

In this paper, DOA estimation is an important research area in array signal processing. The performance of adaptive beamforming methods are known to degrade severly in the presence of uncertainty in the signal sight direction. We propose a novel adaptive beamforming with a Bayesian method. Bayesian method a posterior probability density DOA estimator has been shown to perform excellently. The proposed method is based on clear modeling of unknown in the desired signal array response, which provides sufficiently robustness to unknown in desired DOA, enhances the adaptive array system performance. Simulation results showed that the proposed method appear significantly better than performance as compared with general adaptive beamforming method.