基于子阵的宽带发射干扰置零方法  

A wideband interference nulling method based on subarrays

作　　者：曹运合[1] 张守宏[1] 王胜华[2] 李强[1] 

机构地区：[1]西安电子科技大学雷达信号处理重点实验室,陕西西安710071 [2]航天长征火箭技术有限公司704所,北京100076

出　　处：《西安电子科技大学学报》2005年第4期523-527,共5页Journal of Xidian University

基　　金：国家部委自然基金资助项目(51407010101DZ0116)

摘　　要：为了抑制宽带干扰信号,在发射方向图上形成干扰凹口,提出了一种宽带宽角发射波束形成新方法.该方法首先发射窄带信号,应用超分辨方法估计出目标和干扰的方向并求出窄带权矢量;把窄带权矢量和宽带相位补偿权相结合形成宽带最优权,当发射为宽带线性调频脉冲信号时,能保证发射宽带信号距离高分辨,同时在方向图干扰方向形成较宽零点.In order to suppress wideband interference and make pattem null in the direction of interference, a new wideband transmitting beamforming method for a large scanning angle is presented. The method transmits a narrowband signal to estimate the direction of the target and interference using the MUSIC method and obtain the narrowband weight vector. The wideband optimal weight is obtained by combining the narrowband weight vector and wideband phase compensation weight. The optimal weight can guarantee the high-resolution of the tmasmitting signal and make pattern null. FinaLly, the computer simulation illustrates the good performance of our method.

关 键 词：宽带干扰 波束形成 线性调频 距离高分辨 

分 类 号：TN911.4[电子电信—通信与信息系统]