基于GPU的HJ-1C实时成像处理技术

HJ-1C real-time image processing technology based on GPU

以HJ-1C卫星为研究对象,针对合成孔经雷达(SAR)卫星成像算法复杂,以及计算量大等特点,在研究GPU并行处理技术的基础上,给出GPU平台下针对HJ-1C地面快视系统的CS算法实现.经测试表明,SAR实时成像处理系统成像处理速度优于600 Mbps,能够满足地面接收系统对HJ-1C实时成像处理的要求.

HJ-1C is the first civil S-band synthetic aperture radar （SAR） satellites launched by China, and the equipped SAR has the traits of all-weather, all-time, and penetrability. We focus on HJ-1C satellite. As SAR satellites have complex imaging algorithm and need large amount of calculation, we propose GPU-based SAR real-time imaging system based on GPU-based parallel processing technology. The results show that the processing speed of the SAR real-time imaging system is higher than 600 Mbps, meeting the real-time imaging processing requirements for practical SAR satellite ground receiving system.