相控阵雷达导引头真实场景杂波快速仿真方法  

A Fast Simulation Method for Natural Scence Clutter of Phased Array Radar Seeker

作　　者：尹璨玮 韩晓东[1] 孙清洋 舒汀[1] 郁文贤[1] 

机构地区：[1]上海交通大学上海市智能探测与识别重点实验室,上海200240

出　　处：《现代雷达》2017年第12期78-82,87,共6页Modern Radar

基　　金：航空科学基金资助项目(2015ZD07006)

摘　　要：针对真实的地形数字高程图,提出了一种利用高性能图形处理单元(GPU)对相控阵雷达导引头进行多通道杂波仿真的方法。通过分析雷达回波信号模型,给出了相控阵体制雷达杂波仿真的方法;并利用高性能GPU的统一计算设备架构(CUDA)并行算法实现了此仿真算法,并给出仿真结果。仿真结果验证了该方法能较精确地反映出真实复杂地形的杂波特性,并且与传统的基于中央处理器的杂波模拟方法相比,大大地提升了运算速度。该研究结果也适用于其他体制雷达的杂波仿真,能够进一步有效地支撑基于知识辅助的雷达空时自适应处理技术的研究工作。A method was developed by using high performance graphics processing unit （GPU） to perform the muhi-channel clutter simulation of phased array radar based on the real topographic digital elevation maps. Through the analysis of radar echo signal model, the clutter simulation method of the phased array radar was implemented by high performance GPU with compute unified device architecture （ CUDA ） algorithms and the simulation results were given. The results showed that this method could accurately reflect the clutter characteristics of complex terrains, and the algorithm performance was greatly elevated compared to the traditional clutter simulation methods using central processing unit algorithm. The results of this paper can be applied to clutter simulation of other radar systems, and is helpful for research of the knowledge-aided space-time adaptive processing.

关 键 词：杂波仿真 统一计算设备架构算法 相控阵雷达导引头 图形处理单元 

分 类 号：TJ765.331[兵器科学与技术—武器系统与运用工程] TN958.92[电子电信—信号与信息处理]