多干扰源环境下多基地雷达主瓣干扰抑制方法  

Main-Lobe Jamming Suppression Method in the Presence of Many Disturbance Sources

作　　者：王强[1] 张永顺[1] 司文涛[1] 

机构地区：[1]空军工程大学防空反导学院,陕西西安710051

出　　处：《现代防御技术》2015年第3期35-38,48,共5页Modern Defence Technology

基　　金：陕西省自然科学基金资助项目(2010JQ8007)

摘　　要：针对空间多干扰源方向未知时，干扰抑制效果差这一问题，提出了一种新方法。首先利用改进的MUSIC算法对干扰方位信息进行估计，重新建立干扰模型，然后再进行接收站之间联合干扰对消。结合仿真实验分析可知，经过以上2步处理，信号峰值幅度可达到0．05V，输出信干噪比改善量约为25～30dB。实验结果表明，该方法具有有效性。Aiming at, a kind of new method is proposed to solve the problem of bad jamming sup- pression effect on direction of the unknown space interference sources Firstly, it estimates the source azi- muth information using improved multiple signal classification （MUSIC） algorithm and establishes inter- ference model anew, secondly, makes the joint interference cancellation among bing the simulation experiment, we can know the signal peak amplitude reach 0. nal to interference plus noise ratio （SINR） improves about 25 ~ 30 dB through perimental result states this method is effective. different receivers. Com- 05 V and the output sig- above two step. The ex-

关 键 词：多干扰源 多基地雷达 主瓣相消 

分 类 号：TN973[电子电信—信号与信息处理] TN953.7[电子电信—信息与通信工程]