基于DRFM的机载PD雷达干扰研究  

Interference on Airborne PD Radar Using DRFM-Based Technology

作　　者：孙智勇[1] 唐宏[1] 余定旺[1] 刘晓婧[2] 

机构地区：[1]空军工程大学防空反导学院 [2]中国人民解放军93861部队

出　　处：《现代防御技术》2012年第4期138-142,共5页Modern Defence Technology

基　　金：国家自然科学基金(60971118)

摘　　要：针对传统干扰技术对PD雷达干扰的不足,噪声干扰对干扰机功率要求高,欺骗干扰产生的干扰数目单一,基于当前对抗先进体制雷达的手段——DRFM,对PD雷达干扰进行研究。通过将截获的雷达信号存储、处理,按程序设定的转发间隔重复读出当前采样信号并转发,产生了多个距离欺骗假目标;通过对每次转发干扰进行频率调制,产生了包含距离速度欺骗的一系列假目标;并经过Matable仿真验证了在PD雷达窄带滤波器中,出现多个距离或速度欺骗假目标。并通过仿真验证了干扰的有效性。Aiming at the insufficient noise jamming on pulse Doppler（PD） radar, the requirement of high jamming power and few deceptive jamming signals of traditional interference, based on digital radio frequency memory（DRFM） , a means against current advanced radar, jamming on PD radar is studied. Multiple distance-deceptive false targets are generated by repeatedly reading the sampling signals accord- ing to the repeating interval and transmitting them after the storage and process of the intercepting radar signal, and a series of distance-deceptive and speed-deceptive false targets are generated through the fre- quency modulation on transmitting interference. The results of experiments and simulations prove the ef- fectiveness of the interference designed.

关 键 词：脉冲多普勒雷达 数字射频存储器 重复转发干扰 重复转发移频干扰 

分 类 号：TN959.73[电子电信—信号与信息处理] TN958.2[电子电信—信息与通信工程]