基于统计相关差异的多基地雷达拖引欺骗干扰识别  

Recognition of Deception Jamming Based on Statistical Correlation Difference in a Multistatic Radar System

作　　者：孙闽红[1] 丁辰伟 张树奇 鲁加战 邵鹏飞 SUN Minhong;DING Chenwei;ZHANG Shuqi;LU Jiazhan;SHAO Pengfei(College of Communication Engineerin,Hangzhou Dianzi University,Hangzhou 310018,China;China Aerospace Science and Technology Group 8511 Research Institute,Nanjin 210000,China)

机构地区：[1]杭州电子科技大学通信工程学院,杭州310018 [2]中国航天科工集团八五一一研究所,南京210000

出　　处：《电子与信息学报》2020年第12期2992-2998,共7页Journal of Electronics & Information Technology

摘　　要：针对长基线多基地雷达系统在目标跟踪阶段的拖引欺骗干扰识别问题,考虑到真实目标回波在不同节点雷达中的幅度相互独立,而拖引欺骗干扰假设来自同一干扰机,其在不同节点雷达中的幅度完全相关,从而跟踪波门内只有目标回波与同时存在目标回波与拖引欺骗干扰这两种不同情形下的信号幅度存在统计相关差异。该文提出利用这一差异实现多基地雷达系统的拖引欺骗干扰识别。通过在分析统计相关差异的基础上,对不同节点雷达接收到的回波信号幅度序列进行相关性度量及参数估计,构建检验统计量,在给定的虚警概率下实现了对欺骗干扰的识别。仿真实验结果表明,该方法对欺骗干扰具有较好的识别效果,相较于基于拟合优度的AD检测算法,识别概率平均提高18.63%。In multistatic radar system,the real target echoes are independent of each other in different node radars under long-term baseline conditions,but the amplitudes of the deception jamming signals in different node radars are completely correlated because of the jamming signals generated from the same jammer.This paper uses the difference to realize the recognition of deception jamming in multistatic radar system on the stage of tracking.Correlation measurement and parameter estimation are carried out on the amplitude sequence of the received signals by different nodes,and the test statistic is constructed to realize the recognition of deception jamming under the given false alarm probability.The simulation results show that the proposed method has a good performance on the recognition of deception jamming.Compared to the Anderson-Darling(AD)test based on goodness-of-fit,the recognition probability increases by an average of 18.63%.

关 键 词：欺骗干扰 检测识别 多基地雷达系统 相关性 

分 类 号：TN974[电子电信—信号与信息处理]