【作者】 周利华；

【导师】 赵国庆；

【作者基本信息】 西安电子科技大学 ， 信息对抗， 2014， 硕士

【摘要】 雷达干扰信号分析技术是对干扰信号识别的前提和基础,是电子反对抗设备有效工作的保障。对雷达干扰信号的分析技术具有重要的军事意义和研究前景。论文首先介绍了雷达有源干扰信号的分类,分析了现阶段常用的压制性干扰信号和欺骗性干扰欺骗的数学模型,介绍了各种干扰信号的典型产生方法,并在Matlab环境下对干扰信号及其调制特征参数做了仿真验证。然后研究了对雷达干扰信号进行接收和检测的接收机／信号处理机技术,讨论了在不同接收条件下的干扰信号检测方法和干扰信号分析技术。最后研究了对于干扰信号的时频分析方法和高阶统计量分析方法,对比分析了几种时频分析方法在干扰信号分析应用中的优缺点,选取分析效果较好的分析方法应用于对干扰信号的特征提取,并验证了高阶统计量在欺骗式干扰识别中的应用。更多还原

【Abstract】 Analysis of radar jamming signal is not only the premise and foundation of jamming signal recognition, but also the guarantee of electronic anti-protection equipment to work effectively. Research on the analysis of radar jamming signal technology has great military importance and research prospects.Firstly, the classification and generation method of active radar jamming signal are introduced in this paper, then the current commonly used oppressive jamming signals’ and deception jamming signals’ Mathematical model are analyzed, and then the jamming signal and its modulation characteristic parameters are proved by simulation in the Matlab environment. Secondly, the technology of jamming signal receiving and detecting with signal receiver/signal processor is researched, detecting methods as well as analysis technology of jamming signal are discussed in the different receiving conditions. Finally, the method of time-frequency analysis and high order statistic analysis are introduced in this paper. The advantages and disadvantages of several time-frequency analysis methods is compared in jamming signal analysis application, then good effect analysis methods is selected to analysis of the effect of jamming signal feature extraction, and then the higher order statistics analysis in the application of deception jamming recognition is verified.更多还原