An adaptive beamformer in the presence of coherent interference

Based on eigenspace-based (ESB) method, the paper presents a beamforming algorithm for the uniform linear array which constructs a special matrix instead of the covariance matrix. The algorithm can overcome the problem that ESB method cannot work in the environment of coherent signals. Compared, with the ESB using Toeplitz (TESB) technique, the new algorithm can work well in low SNR and small sample size. Computer simulation results are presented and demonstrate the effectiveness of the proposed method.