基于密度聚类的捷变频抗密集干扰算法研究  

Research on Anti-Dense Jamming Algorithm of Agile Frequency Conversion Based on Density Clustering

作　　者：李奇锦 张宁 LI Qijin;ZHANG Ning(Nanjing Shipborne Radar Research Institute,Nanjing 211100,China)

机构地区：[1]中国船舶集团有限公司第七二四研究所,南京211106

出　　处：《电子信息对抗技术》2025年第2期8-14,共7页Electronic Information Warfare Technology

摘　　要：相参捷变频雷达因其脉间捷变性质具备优良的欺骗干扰对抗性能,而密集假目标干扰兼具欺骗性和压制性双重特征,因此目标回波脉冲存在被密集假目标干扰淹没的可能性。针对上述问题,提出了一种联合聚类剔除预处理方法的捷变频抗密集干扰算法。通过将回波信号进行二值化处理减少部分噪声,利用目标信号回波与干扰回波分布特性的区别进行密度聚类剔除,最终通过稀疏恢复完成对目标的检测。仿真结果验证了密集欺骗干扰环境中该算法在抗密集假目标干扰及目标检测方面的优越性。Because of its inter-pulse agility,the frequency agile radar has excellent deception jamming performance,while the dense false target jamming has both deception and suppression characteristics.Therefore,there is a possibility that the target echo pulse may be drowned out by dense false target jamming.To solve the above problems,an anti-dense jamming algorithm is proposed based on the joint cluster elimination preprocessing method.The echo signal is binarized to reduce noise,and the difference between the distribution characteristics of the target signal and the jamming echo is used to eliminate the density cluster.Target detection is achieved through sparse recovery.The simulation results have verified the superiority of the algorithm in resisting dense false target jamming and target detection in dense deception jamming environments.

关 键 词：捷变频雷达 压缩感知 密集假目标干扰 聚类算法 

分 类 号：TN974[电子电信—信号与信息处理]