| 基于三维重建的分布式卫星SAR干涉测高模型及误差分析 |
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| 引用本文： | 胡继伟,洪峻.基于三维重建的分布式卫星SAR干涉测高模型及误差分析[J].中国科学院研究生院学报,2011,28(4). |
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| 作者姓名： | 胡继伟 洪峻 |
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| 作者单位： | 1. 中国科学院空间信息处理与应用系统技术重点实验室,北京100190;中国科学院电子学研究所,北京100190;中国科学院研究生院,北京100049
2. 中国科学院空间信息处理与应用系统技术重点实验室,北京100190;中国科学院电子学研究所,北京100190 |
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| 摘 要： | 基于InSAR目标三维重建原理对分布式卫星SAR干涉测高系统模型及工作原理进行了分析,给出了完整的目标位置三维重建闭合形式解；并对影响三维重建精度的主要误差源——基线矢量误差和干涉相位误差进行了详细分析；最后通过仿真分析了基线矢量误差和干涉相位误差特性,从而为系统参量定标及其校正提供了基础.
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| 关 键 词： | 分布式卫星 三维重建 基线矢量误差 干涉相位误差 |
Systematic model and errors analysis for distributed satellites SAR system based on three-dimensional reconstruction model |
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| Hu Ji-Wei,HONG Jun.Systematic model and errors analysis for distributed satellites SAR system based on three-dimensional reconstruction model[J].Journal of the Graduate School of the Chinese Academy of Sciences,2011,28(4). |
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| Authors: | Hu Ji-Wei HONG Jun |
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| Institution: | Hu Ji-Wei1,2,3,HONG Jun1,2(1 Key Laboratory of Spatial Information Processing and Application System Technology,Chinese Academy of Sciences,Beijing 100190,China,2 Institute of Electronics,3 Graduate University,Beijing 100049,China) |
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| Abstract: | We analyse the systematic model and working principle of distributed satellites SAR system based on three-dimensional reconstruction principle of InSAR system and present a complete closed-form solution to the three-dimensional geo-location of targets.Meanwhile we analyse the main error sources,baseline error and interferometric phase error,which influence the precision of digital elevation models(DEM) acquisition.Finally,simulations are made for analyses of the characteristics of baseline error and interfe... |
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| Keywords: | distributed satellites three-dimensional reconstruction baseline error interferometric phase error |
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