| 基于三维重建的分布式卫星SAR干涉测高模型及误差分析 |
| |
| 作者姓名： | 胡继伟 洪峻 |
| |
| 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;
2. 中国科学院电子学研究所, 北京 100190;
3. 中国科学院研究生院, 北京 100049 |
| |
| 基金项目： | 国家部委预研基金(8205-08)资助 |
| |
| 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.
|
| 关 键 词： | 分布式卫星 三维重建 基线矢量误差 干涉相位误差 |
| 收稿时间： | 2010-07-23 |
| 修稿时间： | 2010-11-12 |
Systematic model and errors analysis for distributed satellites SAR system based on three-dimensional reconstruction model |
| |
| Authors: | Hu Ji-Wei HONG Jun |
| |
| Institution: | 1. Key Laboratory of Spatial Information Processing and Application System Technology, Chinese Academy of Sciences, Beijing 100190, China;
2. Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
3. Graduate University, Chinese Academy of Sciences, Beijing 100049, China |
| |
| 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 interferometric phase error, which provides a basis for calibration and correction of systematic parameters. |
| |
| Keywords: | distributed satellites three-dimensional reconstruction baseline error interferometric phase error |
|
| 点击此处可从《》浏览原始摘要信息 |
| 点击此处可从《》下载免费的PDF全文 |
|
