RWR脉冲测频概率分析  

Analysis of Pulse Frequency Measurement Probability of RWR

作　　者：王星[1] 王士岩[1,2] 王洪迅[1] 周东青[1] 

机构地区：[1]空军工程大学航空航天工程学院 [2]中国人民解放军95247部队58-1分队

出　　处：《现代防御技术》2014年第3期116-121,141,共7页Modern Defence Technology

基　　金：陕西省自然科学基金项目(2012JQ8019)

摘　　要：在复杂电磁环境下,现阶段的雷达告警接收机(RWR)存在着误警率高、漏警率大和告警时间长等严重问题。其中原因之一是由于接收机测频体制引起的脉冲丢失,导致威胁信号源的截获概率降低。结合RWR的测频体制,对引导式测频引起的脉冲测频概率和丢失概率进行理论分析,并建立了相应的脉冲测频概率和脉冲丢失概率的数学模型,提出了增加数字瞬时测频接收机的改进方法。仿真结果表明,数字瞬时测频接收机数量增多,可提高脉冲测频概率,减少脉冲丢失。The intricate and complex electromagnetic environments of war field cause high false alarm rate, big missed detection rate and long warning time, which are serious problems faced by radar warning receiver（RWR）. One of the reasons is the pulse loss caused by frequency measurement system, and this leads to reduce the intercept probability of threaten signal source. Combined frequency measurement system of RWR, the pulse frequency measurement probability and pulse loss probability caused by conductive frequency measurement are analyzed, mathematical model of pulse frequency measurement probability and pulse loss probability are built, and a method is put forward for improving digital instantaneous frequency measurement receiver. Simulation results show that the more digital instantaneous frequency measurement receivers, the greater probability of pulse frequency measurement and the less pulse lost.

关 键 词：雷达告警接收机(RWR) 引导测频 脉冲测频概率 脉冲丢失概率 数字瞬时测频 

分 类 号：TN957.51[电子电信—信号与信息处理]