Adaptive Beamforming with Nulling Broadens and Sidelobe Control: A Second-Order Cone Programming Approach
A new approach to adaptive beamforming with nulling broadens and sidelobe control is developed.The proposed beamformer represents a modification of the popular minimum variance distortionless response (MVDR) beamformer,which minimizes the array output power while maintaining the distortionless response in the direction of the desired signal.In this paper,a number of interfering signals are assumed to be incident on the array from the sidelobe region for nulling broadens.In addition,the proposed method can make sure that the sidelobe level is strictly guaranteed to be lower than some given (prescribed) threshold value.The resulting modified MVDR problem is shown to be convex,and its second-order cone (SOC) formulation is obtained that facilitates a computationally efficient way to implement our beamformer using the interior point method.Simulation results are presented to verify the effectiveness of the proposed method.
adaptive beamforming second-order cone (SOC) programming covariance matrix taper (CMT) nulling broadens sidelobe control
Fulai Liu Pingping Chen Lu Peng Shouming Guo
Engineer Optimization and Smart Antenna Institute, Northeastern University at Qinhuangdao, China;Sch School of Information Science and Engineering, Northeastern University, Shenyang, China Engineer Optimization and Smart Antenna Institute, Northeastern University at Qinhuangdao,
国内会议
第十七届全国青年通信学术年会、2012全国物联网与信息安全学术年会
北戴河
英文
50-54
2012-07-01（万方平台首次上网日期，不代表论文的发表时间）