Application and research of multi-thread technology in spaceborne SAR imaging

Lei Tian; Shi-ming Fan; Wei Zhao

doi:10.1117/12.855419

2 April 2010 Application and research of multi-thread technology in spaceborne SAR imaging

Lei Tian, Shi-ming Fan, Wei Zhao

Proceedings Volume 7651, International Conference on Space Information Technology 2009; 765124 (2010) https://doi.org/10.1117/12.855419
Event: International Conference on Space Information Technology 2009, 2009, Beijing, China

Abstract

This paper proposes a parallel computing method of multi-thread technology replacing the former serial-execution 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.

Citation Download Citation

Lei Tian, Shi-ming Fan, and Wei Zhao "Application and research of multi-thread technology in spaceborne SAR imaging", Proc. SPIE 7651, International Conference on Space Information Technology 2009, 765124 (2 April 2010); https://doi.org/10.1117/12.855419

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