计算机应用 ›› 2011, Vol. 31 ›› Issue (08): 2079-2082.DOI: 10.3724/SP.J.1087.2011.02079

• 先进计算 • 上一篇    下一篇

高性能SAR成像程序的并行粒度选择技术

杜静,敖富江,王华兵,汪连栋   

  1. 63880部队 博士后科研工作站,河南 洛阳471003
  • 收稿日期:2011-03-03 修回日期:2011-04-27 发布日期:2011-08-01 出版日期:2011-08-01
  • 通讯作者: 杜静
  • 作者简介:杜静(1979-),女,山西晋中人,助理研究员,博士,主要研究方向:高性能计算、并行仿真;敖富江(1975-),男,河南信阳人,高级工程师,博士,主要研究方向:复杂系统仿真;王华兵(1979-),男,云南陆良人,工程师,硕士研究生,主要研究方向:雷达电子战仿真;汪连栋(1966-),男,天津宝坻人,研究员,博士,主要研究方向:电子对抗仿真试验与评估。
  • 基金资助:

    国家973计划项目(613900103);中国博士后科学基金资助项目(20090451525)

Parallel granularity selection technique for high performance SAR imaging program

Jing DU,Fu-jiang AO,Hua-bin WANG,Lian-dong WANG   

  1. Postdoctoral Scientific Research Workstation, Unit 63880, Luoyang Henan 471003, China
  • Received:2011-03-03 Revised:2011-04-27 Online:2011-08-01 Published:2011-08-01
  • Contact: Jing DU
  • Supported by:

    ;China Postdoctoral Science Foundation

摘要: 高性能并行仿真程序必须采用针对性的并行优化技术以获得高效的性能加速。而根据程序特性,确定适合的并行粒度是设计并行优化技术的基础。因此,以典型合成孔径雷达(SAR)成像程序——距离—多普勒(RD)程序为代表,研究了高性能SAR成像程序的并行粒度选择技术,重点针对并行粒度的基本准则和RD算法的并行粒度选择方法进行了研究。实验结果证明,经过并行粒度优化选择的SAR成像程序能够获得显著的性能提升,并且具有良好的可扩展性。

关键词: 合成孔径雷达成像程序, 并行粒度, 并行度, 并行开销, 滑动窗口

Abstract: High performance parallel simulation programs need adopt parallel optimizing techniques to achieve efficient performance acceleration. And achieving appropriate parallel granularity according to the characteristics of given program is the basis of parallel optimizing technique. Therefore, represented by a typical Synthetic Aperture Radar (SAR) imaging program, namely Range-Doppler (RD), the authors researched into parallel granularity selection techniques for high performance SAR imaging programs. Especially, two important components were researched, including the basic rules of parallel granularity selection and the parallel granularity selection approach of RD algorithm. The experimental results show that according to the selected parallel granularity, the SAR imaging program can achieve obvious performance improvement and high scalability.

Key words: Synthetic Aperture Radar (SAR) imaging program, parallel granularity, parallel degree, parallel overhead, sliding window

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