雷达海杂波频域特性分析及目标检测方法  

Analysis of Radar Sea Clutter Frequency Domain Characteristics and Target Detection Methods

作　　者：汤明健 范家强 Tang Mingjian;Fan Jiaqiang(Nanjing Research Institute of Electronics Technology,Nanjing 210039,China)

机构地区：[1]南京电子技术研究所,江苏南京210039

出　　处：《科学技术创新》2022年第8期173-176,共4页Scientific and Technological Innovation

摘　　要：海杂波是指:粗糙起伏的海洋表面与雷达发射的电磁波发生相互作用,产生的强烈的散射回波。海杂波的具体特征与海表面的环境以及雷达系统参数等各种各样的因素相关,具有回波能量强、变化快且复杂、时空非平稳等特点。雷达在检测海面低空目标时,强海杂波会淹没较弱的目标信号,严重影响目标的检测性能。Sea clutter is the backscatter of radar electromagnetic waves from the rough sea surface.Features of sea clutter is influenced by combined factors of both environment of sea surface and radar system parameters.Sea clutter has strong energy,and is complex and non-stationary within time and space.When radar detects low-altitude targets on the sea surface,Strong sea clutter will flood weaker target signals,Seriously affect the detection performance of the target.

关 键 词：海杂波 杂波频域特性 低空弱目标 海杂波抑制 

分 类 号：TN955.2[电子电信—信号与信息处理]