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中国科学院大学学报 ›› 2014, Vol. 31 ›› Issue (5): 708-713.DOI: 10.7523/j.issn.2095-6134.2014.05.018

• 简报 • 上一篇    下一篇

基于GPU的HJ-1C实时成像处理技术

顾久祥1,2, 杨仁忠1, 石璐1, 韦宏卫1   

  1. 1. 中国科学院遥感与数字地球研究所, 北京 100094;
    2. 中国科学院大学, 北京 100049
  • 收稿日期:2013-09-22 修回日期:2013-11-13 发布日期:2014-09-15
  • 通讯作者: 顾久祥,E-mail:jxgu@163.com
  • 基金资助:

    国家科工委攻关项目([2010]1481号)资助

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

GU Jiuxiang1,2, YANG Renzhong1, SHI Lu1, WEI Hongwei1   

  1. 1. Center for Earth Observation and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2013-09-22 Revised:2013-11-13 Published:2014-09-15

摘要:

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.

关键词: HJ-1C, GPU, 合成孔径雷达, CS, CUDA

Abstract:

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.

Key words: HJ-1C, GPU, SAR, CS, CUDA

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