| 星载SAR数据成像的并行和实时处理研究曙光机的应用实例 |
| |
| 引用本文： | 徐永健, 王贞松, 罗晓广. 星载SAR数据成像的并行和实时处理研究曙光机的应用实例[J]. 电子与信息学报, 2001, 23(8): 736-743. |
| |
| 作者姓名： | 徐永健 王贞松 罗晓广 |
| |
| 作者单位： | 中国科学院电子学研究所, |
| |
| 基金项目： | 国家自然科学基金(NFNS 69896250-2)，星载合成孔径雷达项目资助，国家高性能计算基金(NCIC981009) |
| |
| 摘 要： | 星载合成孔径雷达成像数据量大,实时性要求高。该文阐述在曙光2000-Ⅱ型巨型并行计算机上完成星载合成孔径雷达CS算法的并行处理。并利用该并行机完成了对CS算法的实时成像系统并行化结构的系统仿真。实验结果表明该文提出的并行算法可在曙光2000-Ⅱ型巨型并行计算机上获得很好的效果。
|
| 关 键 词： | SAR成像 Chirp scaling算法 并行化 实时系统仿真 曙光并行机 |
| 收稿时间： | 2000-03-06 |
| 修稿时间： | 2000-03-06 |
STUDY OF PARALLEL AND IN TIME PROCESSING FOR DATA IMAGING OF SPACEBORNE SAR |
| |
| Xu Yongjian, Wang Zhensong, Luo Xiaoguang. STUDY OF PARALLEL AND IN TIME PROCESSING FOR DATA IMAGING OF SPACEBORNE SAR[J]. Journal of Electronics & Information Technology, 2001, 23(8): 736-743. |
| |
| Authors: | Xu Yongjian Wang Zhensong Luo Xiaoguang |
| |
| Affiliation: | Institute of Ecletronics. Chinese Academy of Sciences Beijing 100080 China |
| |
| Abstract: | The image processing of spaceborne Synthetic Aperture Radar (SAR) needs to process enormous amount of data and should accomplish the processing a.s soon as possible, hi order to increase the speed of SAR image processing, the paper presents the Chirp Scaling (CS) algorithm in parallel mode for the Dawn 2000-11 which is a grand parallel computer. The paper also simulates the real time imaging system, which will work on satellite, and modifies the structure of the real time system according to the results of the simulation. The experiment proves that the parallel CS algorithm provided in the paper can get satisfying results on Dawn 2000-11. |
| |
| Keywords: | SAR image Chirp Scaling(CS) algorithm Parallel mode |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《电子与信息学报》浏览原始摘要信息 |
|
点击此处可从《电子与信息学报》下载全文 |
