摘要
雷达成像处理需要更大宽带以实现更高的距离分辨力,同时还需要更多的脉冲积累获得更高的方位像分辨力,因此雷达成像处理过程计算量巨大。如何实现未来超带宽雷达的实时成像处理是一项艰巨挑战。图形处理器(GPU)以卓越的浮点性能和访存带宽,成为并行加速应用平台的有力候选者。设计了一种基于CPU+GPU平台并面向合成孔径雷达/逆合成孔径雷达(SAR/ISAR)的实时成像系统方案,并将该方案实体化。实验表明,该成像系统能够实现实时SAR/ISAR成像,同时该实时成像系统也可用于电子对抗领域,在干扰方法和效果研究中起到重要作用。
Radar image processing is a radar signals process with huge computation quantity,because it requires wider bandwidth and more pulse accumulation,and it becomes a big challenge to achieve realtime image process for ultra wide band in the future.Graphics Processing Unit(GPU)is the candidate for its excellent computing capability and memory access performance.A real-time Synthetic Aperture Radar/Inverse Synthetic Aperture Radar(SAR/ISAR)imaging system based on CPU+GPU hybrid architecture is designed and implemented.The results show that the real-time SAR/ISAR system can achieve wide band SAR/ISAR image process,and it can be applied in the electronic warfare field and play a key part in the jammer study and experiment.
作者
张彦彬
丁晟
高雁
李松键
朱金中
孙友礼
张陨石
ZHANG Yanbin;DING Sheng;GAO Yan;LI Songjian;ZHU Jinzhong;SUN Youli;ZHANG Yunshi(Wuxi Leihua Technology Company Limited,Wuxi Jiangsu 214125,China)
出处
《太赫兹科学与电子信息学报》
北大核心
2019年第1期146-151,共6页
Journal of Terahertz Science and Electronic Information Technology
关键词
图形处理器
混合架构
合成孔径雷达
逆合成孔径雷达
实时成像系统
电子战
Graphics Processing Unit
hybrid architecture
Synthetic Aperture Radar
InverseSynthetic Aperture Radar
real-time imaging system
electronic warfare
