Robust adaptive beamforming with sidelobe controlled based on improved objective function

A new algorithm of robust adaptive beamforming (RAB) with low sidelobe is proposed in this paper. To control the sidelobe, an extra sidelobe power constraint function is added on the objective function in minimum variance distortionless response (MVDR) algorithm. Meanwhile, we constrain the steering vector error to enhance the robustness. Simulation results show that the proposed algorithm has better performance in robustness and the controlled sidelobe compared with conventional RAB algorithms.