高超声速平台雷达杂波特性研究  

Research of Radar Clutter Characteristics on Hypersonic Vehicle

作　　者：李龙[1] 刘峥[1] 陈熠[1,2] 张磊[1,2] 

机构地区：[1]西安电子科技大学雷达信号处理国防科技重点实验室,西安710071 [2]中国电子科技集团公司第三十八研究所,合肥230031

出　　处：《现代雷达》2013年第11期80-83,共4页Modern Radar

基　　金：国家部委预研项目资助课题

摘　　要：高超声速平台载雷达下视时面临恶劣的杂波环境,对其杂波特性的分析是杂波抑制的基础。针对高超声速飞行器雷达杂波估计问题,文中对高超声速载雷达杂波进行了建模仿真,分析了在不同脉冲重复频率下高超声速平台载雷达杂波的距离———多普勒谱特性和空时二维杂波谱特性。并从杂波抑制的角度分析了不同重频体制的优劣,指出了高超声速平台杂波抑制可以折衷选择中等重复频率。A radar based on HyperSonic Vehicle （HSV-R） wiU encounter severe clutter environment when looking down to the ground ,and the clutter characteristic analysis of HSV-R is the basis of clutter suppression. On the issue of clutter estimation of HSV-R, this article models and simulates the clutter of HSV-R, on the basis of which , clutter distance-doppler spectrum characteristics and space-time spectrum characteristics of HSV-R are discussed at different pulse repetition frequencies. Then this paper analyses the advantages and disadvantages of different repetition frequencies from the perspective of clutter suppression and demonstrates that a medium repetition frequency can reach the best performance in clutter suppression of HSV-R.

关 键 词：高超声速平台 杂波特性 杂波谱 空时二维自适应处理 

分 类 号：TN974[电子电信—信号与信息处理]