基于RCS数据重构调频步进雷达动态目标回波  

Dynamic Target Echo Reconstruction of Chirp Stepped-frequency Radar from RCS Data

作　　者：晏行伟[1] 陈付彬[1] 张泽建[2] 卢大威[1] 张军[1] 万建伟[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院 [2]71834部队

出　　处：《弹箭与制导学报》2012年第5期140-144,共5页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：国家自然科学基金项目(61002022);武器装备预研基金项目资助

摘　　要：调频步进雷达波形通常具有大带宽,由目标逐个频点的RCS电磁计算数据直接重构雷达回波,面临计算量巨大且高速运动目标回波难以实时计算的问题。基于线性雷达目标理论和FFT内插方法,提出了一种调频步进雷达动态目标回波信号生成的新方法,重点解决chirp信号子脉冲高速运动目标回波的实时生成问题。仿真实验验证了算法的有效性。Chirp stepped-frequency radar waveform possesses large bandwidth generally.Echo Reconstruction from electromagnetic computed RCS of each frequency is a computationally intensive task and encounters real time problem for high speed targets.Using linear radar target theory and FFT interpolating method,a new method of dynamic target echo reconstruction of chirp stepped-frequency radar was proposed.The new method focuses on the real-time echo generation of high speed targets under Chirp stepped-frequency pulses.The numerical simulation was performed to illustrate the validity of the proposed method.

关 键 词：调频步进雷达 动态目标回波 仿真重构 线性雷达目标理论 FFT内插恢复 

分 类 号：TN955[电子电信—信号与信息处理]