摘要
提出了一种精确控制旁瓣和抑制干扰的自适应波束形成算法。它是通常的最小方差无畸变(MVDR)波束形成算法的改进形式,使阵列输出信号功率最小的同时,保持目标信号方向的无失真响应,并且严格保证旁瓣低于某一给定值,抑制干扰。在仿真过程中,充分应用了二阶锥规划(second-order cone programm ing)算法,并与MVDR波束形成算法进行比较,验证了方法的正确性,同时研究了该算法的稳健性。
A new approach to adaptive beamforming with sidelobe control is developed. The proposed beamformer represents a modification of the popular minimum variance distortionless response（MVDR） beamformer. It minimizes the array output power while maintaining the distortionless response in the direction of the desired signal and a sidelobe level that is strictly guaranteed to be lower than some given （prescribed） threshold value. The modified MVDR method is obtained by using second - order cone programming approach. It is considered to be correct and robust compared with the MVDR method.
出处
《微处理机》
2006年第3期52-53,共2页
Microprocessors
关键词
自适应波束形成
旁瓣控制
二阶锥规划
Adaptive beamforming
Sidelobe control
Second - order cone programming
