低频机载雷达受无意干扰分析及抑制研究  

Analysis and Suppression of Unintentional Jamming for Low-Band Airborne Radar

作　　者：霍恩来 HUO Enlai(The 38th Research Institute of CETC,Hefei 230088)

机构地区：[1]中国电子科技集团公司第三十八研究所,合肥230088

出　　处：《火控雷达技术》2023年第3期106-110,共5页Fire Control Radar Technology

摘　　要：低频段机载雷达基于其独特的下视优势,在现代军事战争中承担的越来越重要的作用。然而升空后面临的干扰也尤其严重,在雷达设计过程中,不仅要考虑敌方主动实施的压制、欺骗等干扰,环境中存在的无意干扰同样会对雷达性能造成严重的影响,如何抑制无意干扰在雷达信号处理中同样重要。本文基于机载雷达仿真数据,对低频段机载雷达系统受到的无意干扰进行分析及研究,针对窄带连续波干扰进行了建模,并分析雷达受到其干扰后检测特性的变化,并提出一种抑制手段,通过仿真和分析验证了算法的有效性。Low-band airborne radar plays an increasingly important role in modern warfare due to its unique down-looking capability.However,the jamming against low-band airborne radar after its take-off is also particularly serious.In the process of radar design,it is necessary to consider not only the active suppression jamming and deception jamming from the enemy,but also the unintentional jamming in the environment which has serious impact on radar performance.It is of great importance to find a way to suppress unintentional jamming in radar signal processing process.Based on the simulation data of airborne radar,the unintentional jamming of low-band airborne radar is analyzed and studied in this paper.In addition,the narrowband continuous wave jamming is modeled,and the change in radar detection characteristics because of such jamming is analyzed.Finally,a method is proposed to suppress the unintentional narrowband continuous wave jamming.The simulation results prove the effectiveness of the proposed method.

关 键 词：低频段机载雷达 无意干扰 窄带连续波 抑制 

分 类 号：TN95[电子电信—信号与信息处理] TN974[电子电信—信息与通信工程]