Application and Research of Multi-thread Technology in Spaceborne SAR Imaging

摘要：

This paper proposes a parallel computing method of multi-thread technology replacing the former serialexecution one according to the analysis of the radar imaging, the processing flow of NCS algorithm and the characteristic of multiprocessor and multi-core system, considering of the hard demand of high speed in imaging of raw spaceborne SAR data. A multi-thread program based on Linux and the pthread encapsulated is also provided. Through the experiments on HP Proliant DL580, it is proved that, compared with traditional serial NCS algorithm, the method of multi-thread presented in this paper makes use of system resource effectively and is good for parallel expansibility of imaging as well as achieving nice resolution.

关键词： SAR multi-thread NCS algorithm parallel processing synchronization

作者: Tian Lei Fan Shi-ming Zhao Wei

作者单位: Beijing Institute of Satellite Information Engineering, Beijing,100086, China Beijing Institute of Satellite Information Engineering, Beijing, 100086, China

会议类型: 国际会议

会议名称: International Conference on Space Information Technology 2009(2009年第三届空间信息技术国际会议)

会议地点: 北京

会议语种:英文

页码: 1-8

在线出版日期: 2009-11-26（万方平台首次上网日期，不代表论文的发表时间）