地球自转对天基雷达杂波特性影响分析  

Analysis of Earth Rotation Effect for Clutter Characteristic of Space-based Radar

作　　者：雷志勇[1] 于永[1] 郑志彬[1] 

机构地区：[1]南京电子技术研究所,南京210039

出　　处：《现代雷达》2017年第7期21-24,共4页Modern Radar

摘　　要：与机载平台雷达探测时的空时二维耦合杂波特性不同,天基平台雷达探测时地球自转对杂波的多普勒谱调制影响,导致杂波频谱进一步展宽,杂波抑制变得更加复杂。文中主要研究地球自转对PD体制天基平台雷达杂波回波特性的影响,并进行了仿真,首次得到PD体制下天基平台杂波回波的距离多普勒谱图,为天基雷达杂波抑制和目标检测提供理论基础和依据。The earth rotation affects the clutter Doppler frequency, which causes clutter Doppler frequency wider, especially for space-based radar. This effect makes clutter mitigation more difficult which directly affects the performance of target detection. The effect of the earth rotation on the clutter characteristic is studied in this paper, and the conclusions provide support for SBR clutter suppression and moving target detection.

关 键 词：地球自转影响 天基雷达 多普勒频偏 杂波特性 

分 类 号：TN958[电子电信—信号与信息处理]