基于瞬时时宽带宽积的LPI波形射频隐身性能评估方法  

An Evaluation Method of RF Stealth Performance of LPI Waveforms Based on ITBP

作　　者：高超 邓晓波 郑世友 GAO Chao;DENG Xiaobo;ZHENG Shiyou(AVIC Leihua Electronic Technology Institute,Wuxi 214063,China;Aviation Key Laboratory of Science and Technology on AISSS,Wuxi 214063,China)

机构地区：[1]中国航空工业集团公司雷华电子技术研究所,江苏无锡214063 [2]航空电子系统射频综合仿真航空科技重点实验室,江苏无锡214063

出　　处：《现代雷达》2021年第8期62-65,共4页Modern Radar

基　　金：国防预研项目(19H86303ZT00400102)。

摘　　要：低截获波形是实现机载雷达射频隐身和主动反侦察的重要技术手段,其射频隐身能力的评估具有重要意义。为了解决现有评估方法计算复杂、实战应用困难的问题,文中提出了一种基于信号瞬时时宽带宽积的低截获波形射频隐身性能评估方法,从截获接收原理与低截获信号波形时频分布特性出发,构建瞬时时宽带宽积表征因子,并利用该评估方法对四种波形进行了仿真实验。实验结果表明:文中所提方法对雷达低截获波形的射频隐身性能具有很好的度量作用。Low probability of interception(LPI)waveform is an important technical method to realize the radio frequency(RF)stealth and active counter reconnaissance of airborne radars,its RF stealth capability evaluation is of great significance.In order to solve the problems of complex calculation and realistic consideration,an LPI waveform RF stealth performance quantitative evaluation method based on the instant time-bandwidth product is proposed.From the intercepted receiving principle and time-frequency distribution characteristics of LPI waveform,instant time-bandwidth product factor is constructed.Simulation is carried out during which four genres of LPI waveforms are evaluated.Testing results show that the proposed method is a good measure for the RF stealth performance of LPI waveforms of airborne radars.

关 键 词：射频隐身 性能评估 瞬时时宽带宽积 低截获波形 

分 类 号：TN973[电子电信—信号与信息处理]