一种多时码雷达信号及其特性分析  

Analysis of A Polytime Code Radar Signal and Its Characteristics

作　　者：谭龙[1] 姜秋喜[1] 潘继飞[1] 

机构地区：[1]电子工程学院,合肥230037

出　　处：《舰船电子对抗》2015年第5期25-29,共5页Shipboard Electronic Countermeasure

摘　　要：侦察接收机及信号处理技术的不断发展给雷达低截获概率技术带来了严峻挑战,研究了一种多时码低截获概率雷达信号,分析了信号模型、时频域特征及生成机理,从信号压缩比的角度探讨了其低截获概率特性,仿真了信号的时频域特性、自相关特性及模糊函数特性。理论分析与计算机仿真均表明,多时码信号具备雷达信号的探测性能与低截获概率特性,其实际运用将能够成为现有雷达波形的有益补充。The durative development of reconnaissance receiver and signal processing technology bring severe challenges for low probability of intercept（LPI）technology of radar.This paper studies a kind of LPI radar signal based on polytime code,analyzes the signal model,time-frequency domain feature and generating principle,discusses its LPI feature from the standpoint of signal compression ratio,simulates the time-frequency domain feature,auto-correlation feature and fuzzy function feature of the signal.Both of the theoretical analysis and computer simulation show that the polytime code signal has the detection performance and LPI performance of radar signal,its actual application will become the beneficial supplement for the existing radar waveforms.

关 键 词：多时码信号 低截获概率 压缩比 

分 类 号：TN957.51[电子电信—信号与信息处理]