基于延时多普勒对齐的组网雷达点源干扰抑制算法  

Adaptive Signal Suppression Based on Delay-Doppler Alignment for Single Point Radiation Source in Radar Network

作　　者：缪颖杰 刘飞峰[1,2] 刘鸿杰 卢佳欣 MIAO Yingjie;LIU Feifeng;LIU Hongjie;LU Jiaxin(Radar Research Laboratory,School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China;Key Laboratory of Electronic and Information Technology in Satellite Navigation(Beijing Institute of Technology),Ministry of Education,Beijing 100081,China)

机构地区：[1]北京理工大学信息与电子学院雷达技术研究所,北京100081 [2]卫星导航电子信息技术教育部重点实验室(北京理工大学),北京100081

出　　处：《信号处理》2021年第10期1923-1929,共7页Journal of Signal Processing

基　　金：国家自然科学基金青年科学基金项目(61601032);国家自然科学基金面上项目(62071045)。

摘　　要：针对组网雷达被单点运动辐射源干扰情况下的目标检测问题,本文利用目标多角度回波在传播延时、多普勒以及散射特性上存在差异的特点,设计了一种基于干扰延时、多普勒对齐的自适应干扰抑制算法。本文首先建立了单点运动辐射源干扰条件下的组网雷达信号模型,其次对抑制算法进行了详细介绍,最后通过典型场景的仿真分析验证了所提算法的抑制效果。仿真结果说明,所提算法可以充分利用目标在距离多普勒域的稀疏特性,实现干扰的有效抑制。In order to achieve effective target detection with a radar network interfered by a moving radiation source,an adaptive suppression method based on Delay-Doppler alignment is proposed in this paper.First of all,the signal model for a large baseline radar network interfered by a moving radiation source is built.Secondly,the adaptive suppression method is introduced in detail.Finally,the effectiveness of the method is verified via the simulation of a typical example.The results show that the proposed method can take advantage of the target sparsity in the range Doppler plane and realize effective interference suppression.

关 键 词：组网雷达 自适应处理 数据融合 

分 类 号：TN974[电子电信—信号与信息处理]