基于数字射频存储器的间歇采样重复转发干扰  

Jamming Technique of Interrupted-sampling and Periodic Repeater Based on Digital Radio Frequency Memory

作　　者：刘忠[1] 王雪松[1] 刘建成[1] 王国玉[1] 肖顺平[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院,湖南长沙410073

出　　处：《兵工学报》2008年第4期405-410,共6页Acta Armamentarii

基　　金：全国优秀博士学位论文专项资金资助项目(08100101)

摘　　要：以对线性调频脉冲压缩雷达进行干扰为背景,介绍了间歇采样直接转发干扰的原理与干扰效果。在此基础上提出了间歇采样重复转发干扰样式,并理论分析了该干扰样式的干扰效果:可使线性调频脉冲压缩雷达产生数量众多、幅度较强的逼真假目标。研究了关键参数对干扰效果的影响。通过数值仿真对文中的分析结论进行了验证。研究结果表明该种干扰样式比间歇采样直接转发干扰具有更好的效果。A jamming technique on for linear frequency modulated pulse; pulse compression radar was studied. An operational principle of jamming of interrupted-sampling and direct repeater based on digital radio frequency memory was introduced, and its jamming effectiveness was analyzed. On the basis of the above mentioned jamming, a new jamming technology of interrupted-sampling and periodic repeater was presented. The new jamming effectiveness was theoretically analyzed, and the effect of key parameters on the jamming effectiveness was discussed emphatically. The new jamming can make the linear frequency modulated pulse radar obtain numerous lifelike false targets, of which number, amplitudes and positions can be adjusted or controlled by changing some parameters of the new jammer. The studied result shows that the new jamming has better effectiveness than that of the above mentioned jamming.

关 键 词：雷达工程 线性调频脉冲 脉冲压缩雷达 数字射频存储器 间歇采样 转发干扰 

分 类 号：TN974[电子电信—信号与信息处理] TN972.1[电子电信—信息与通信工程]