| TanDEM-X系统相对测高性能分析 |
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| 引用本文： | 汪丙南.TanDEM-X系统相对测高性能分析[J].遥感学报,2009,13(1). |
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| 作者姓名： | 汪丙南 |
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| 作者单位： | 1. 中国科学院电子学研究所,北京,1OO080;中国科学院研究生院,北京,100039
2. 中国科学院电子学研究所,北京,1OO080 |
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| 摘 要： | 针对TanDEM-X卫星计划,重点分析其在一个轨道周期内的测高性能的变化情况.首先从建立双星HELIX构形的HILL.方程出发,分析了一个轨道周期内直接影响干涉测高的有效基线,包括顺轨和交轨基线的影响,然后讨论了系统相关系数及其对干涉相位误差的影响,通过建立相对高程误差模型,进一步分析了系统相对高程精度.最后计算机仿真结果验证了分析的正确性.
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| 关 键 词： | 干涉 HELIX构形 有效基线 相关系数 相位误差 相对高程精度 |
Relative height accuracy analysis of TanDEM-X system |
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| WANG Bing-nan.Relative height accuracy analysis of TanDEM-X system[J].Journal of Remote Sensing,2009,13(1). |
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| Authors: | WANG Bing-nan |
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| Affiliation: | The Institute of Electronic,Chinese Academy of Sciences,Beijing 100080,China;Graduate School of Chinese Academy of Sciences,Beijing 100039,China |
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| Abstract: | According to TanDEM-X satellite program, this paper studies interferometric capabilities of TanDEM-X
mission during an orbit period and tries to get the change of relative height error in a global scope. Firstly, based on
HILL-equation of the helix formation, effective baseline, including the range and azimuth effective baseline, whichhas a
great impacton interferometry is analyzed in detail during an orbit period. Then the influence of baseline decorrelation
imposing on interferometric phase error is discussed detailedly, which is themost important influence on relative height
error. At lastrelative heightmodel is established and relative heighterrororTanDEM-X system is presented further. The
computer simulating result shows the validity ofanalysi |
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| Keywords: | interferometry HELIX formation effective baseline correlation coefficient phase error relative height accuracy |
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