基于数字去斜的多通道LPI信号截获器  

A Multi-Channel LPI Interceptor Based on Digital Deramping

作　　者：赵凯凯[1] 杨承志[1] 肖卫华[1] 张柏林[1] 

机构地区：[1]空军航空大学信息对抗系,长春130022

出　　处：《电子信息对抗技术》2015年第5期18-23,共6页Electronic Information Warfare Technology

摘　　要：首先对低截获概率(LPI)雷达信号截获理论进行了分析研究,针对线性调频连续波(LFMCW)和非线性调频连续波(NLFMCW)信号,设计一种能够有效提高处理增益的基于数字去斜的多通道LPI信号截获器。然后,通过matlab仿真,分析了输入LPI信号与通道完全匹配和失配的检测效果。仿真结果表明,该截获器对线性调频连续波(LFMCW)信号有很好的截获效果,对非线性调频连续波(NLFMCW)信号有一定的截获效果。The intercept theory of LPI radar signal is analyzed firstly. As for LFMCW and NLFMCW signal,a multi-channel LPI signal interceptor is designed based on digital deramping which can enhance processing gain efficiently. Then the influence of complete match and mismatch between input LPI signals and channels is analyzed through matlab simulation. The simulation results are demonstrated that the interceptor has a very good intercept effect for LFMCW and some intercept effects.

关 键 词：低截获概率 数字去斜 处理增益 

分 类 号：TN971.1[电子电信—信号与信息处理]