主瓣干扰下宽带圆阵自适应波束形成方法  

Adaptive Broadband Beamforming of Circular Array Under Main Lobe Interference Condition

作　　者：覃岭[1] 黄茜[2] 李会勇[2] 何子述[2] 

机构地区：[1]总参57所,成都610041 [2]电子科技大学电子工程学院,成都610054

出　　处：《电子科技大学学报》2009年第3期359-362,共4页Journal of University of Electronic Science and Technology of China

基　　金：部级基金

摘　　要：在宽带自适应波束形成中,若干扰信号从主瓣进入,往往引起主瓣畸变且副瓣电平增高,波束性能严重恶化。随着圆型阵列的广泛应用,该文针对均匀圆阵的宽带波束形成,合理地构造出阻塞矩阵,对主瓣干扰进行干扰相消预处理,再进行自适应波束形成,解决了主瓣畸变问题,提高了自适应波束的性能。结合均匀分布圆阵所作的计算机仿真验证了该方法的有效性。The main lobe interference usually causes the distortion of the main lobe and the increase of the side-lobe level in adaptive broadband beamforming. Circular arrays have been applied popularly for its wide scan range. A reasonable blocking matrix of uniform circular array is constructed for broadband beamforming to cancel the main lobe interference. The simulation verifies the effectiveness of the proposed method in avoiding the main lobe distortion.

关 键 词：自适应波束形成 宽带 圆阵 干扰相消 

分 类 号：TN958.92[电子电信—信号与信息处理]