雷达目标反射信号二次调制特征的计算和模拟  

Calculation and Simulation for the Secondary Modulation Characteristics of the Radar Target Reflection Signals

作　　者：黎明也[1] 曹志华[1] 刘建[1] 

机构地区：[1]中国电子科技集团公司第51研究所,上海201802

出　　处：《中国电子科学研究院学报》2014年第4期388-390,395,共4页Journal of China Academy of Electronics and Information Technology

基　　金：国家重点预先研究项目

摘　　要：提出了一种空中目标雷达回波信号二次调制特征的模拟方法。建立了空中目标发动机旋转部件的反射信号模型,模拟飞机发动机旋转桨叶的雷达截面积、旋转转速、微多普勒频率等特征。通过仿真分析了不同观测角度情况下,空中目标反射信号的时域和频域二次调制特征。A method for simulating the secondary modulation characteristics of the radar echo reflected the aerial targets is presented. The model is constructed for the echo signals reflected by the rotating components of the aircraft＇s engine, simulating the target＇s signature such as RCS, rotating speed and micro- doppler frequency of the propeller blades. In time domain and frequency domain, secondary modulation characteristics of propeller aircrafts are analyzed with different observing orientations by computer simulation.

关 键 词：假目标 数字射频存储 目标识别 微多普勒 

分 类 号：TN957[电子电信—信号与信息处理]