| 卫星编队InSAR系统分辨率设计 |
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| 引用本文： | 田育民,楼良盛,陈萍.卫星编队InSAR系统分辨率设计[J].测绘学院学报,2011(2). |
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| 作者姓名： | 田育民 楼良盛 陈萍 |
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| 作者单位： | 西安测绘研究所;68011部队; |
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| 基金项目： | 国家自然科学基金资助项目(40871205) |
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| 摘 要： | 依据脉冲信号压缩技术,从SAR成像理论出发,在介绍了SAR分辨率定义的基础上,分析了影响基于卫星编队InSAR系统分辨率的原因是存在距离向和方位向基线。在成像处理时,为了确保干涉相位精度,需进行去相关预滤波处理,由此引起系统成像带宽变窄,分辨率下降。依据影响分辨率的原因,提出了基于卫星编队InSAR系统分辨率设计思想,并根据该思想对分辨率的影响情况进行了分析。
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| 关 键 词： | 干涉合成孔径雷达 卫星编队 分辨率 预滤波 干涉相位 |
Design of Resolution for InSAR System Based on Formation-Flying Satellites |
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| TIAN Yu-min,LOU Liang-sheng,CHEN Ping.Design of Resolution for InSAR System Based on Formation-Flying Satellites[J].Journal of Institute of Surveying and Mapping,2011(2). |
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| Authors: | TIAN Yu-min LOU Liang-sheng CHEN Ping |
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| Institution: | TIAN Yu-min1,LOU Liang-sheng1,CHEN Ping2 (1.Xi'an Research Institute of Surveying and Maping,Xi'an 710054,China,2.68011 Troops,Lanzhou 730020,China) |
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| Abstract: | According to the pulse compaction technology and the SAR imaging principles,and on the basis of the introduction of the SAR resolution definition,the reasons affecting the resolution of the InSAR system based on formation-flying satellites has been ananylsed,and it's because of the existing of the across-track and along-track baselines.In the imaging disposing process,in order to insure the precision of the interferometric phase,the decorrelation pre-filtering process must to be done,but it will cause the s... |
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| Keywords: | interferometric synthetic aperture radar formation-flying satellites resolution pre-filtering interferometric phase |
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