宽带稀布阵列发射波束形成技术  

Study of wideband transmitting beamforming on thinning array

作　　者：曹运合[1] 王胜华[2] 张守宏[1] 尚海燕[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：《系统工程与电子技术》2005年第4期600-602,共3页Systems Engineering and Electronics

基　　金：国防科技自然基金资助课题 (5 14 0 70 10 10 1DZ0 116)

摘　　要：对于宽带信号,干扰置零方法是一个难以解决的问题。若要抑制宽带干扰,需要方向图在宽带干扰方向形成凹口。针对线性调频信号,在确知信号和干扰方向的前提下,把窄带权和宽带权相结合,提出了一种宽带宽角发射波束形成新方法,该方法能在宽带干扰方向形成较宽零点;另外,阵元稀布在不增加阵元数和计算量的前提下,可提高角分辨率。最后,应用最佳稀布阵列。Jammer nulling for a wideband signal is a tough problem. It is necessary to null in the direction of the interference in order to suppress interference. A new wideband transmitting beamforming method combining narrowband and wideband is presented for LFM signals. It forms pattern null in the direction of the wideband interference. In addition, thinning array is a good idea to increase the angular resolution under the condition of the same sensors and computation load. The simulation result demonstrates the effectiveness of the method using the optimum thinning array.

关 键 词：线性调频 宽带 波束形成 稀布阵 

分 类 号：TN957[电子电信—信号与信息处理]