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应用GPS观测量改正InSAR大气误差的空间插值比较 被引量：4

Comparison of Spatial Interpolation Methods for Correcting Atmospheric Effects in InSAR Measurements Using GPS Observations
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摘要 大气水汽的空间变化和时间分布是限制重复轨道干涉测量技术精度的主要因素之一。基于GPS数据,研究比较了改进后的基于地形的GPS扰动模型(GTTM)和基于地形的湍流混合模型(TDTM)。结果表明,改进的GTTM模型和TDTM模型都能有效地降低大气水汽对InSAR测量地面形变精度的影响,且TDTM插值效果更佳。 The variable spatial and temporal distribution of atmospheric water vapor is one of the main factors which limits the accuracy of repeat-pass InSAR.Based on the GPS data,the performance of improved GPS Topography-dependent Turbulence Model（GTTM） and the model of Topography-dependent and Turbulent Mixing（TDTM） was compared.The experimental results showed that both correction models were able to reduce water vapour effects on InSAR measurements with advantage.It was able to be concluded that the model of TDTM was more effective.
作者 黄甜 陈国栋
机构地区 苏州建设交通高等职业技术学校 苏州市测绘院有限责任公司
出处 《测绘科学技术学报》 北大核心 2012年第1期38-41,共4页 Journal of Geomatics Science and Technology
关键词 合成孔径雷达干涉测量 大气延迟改正 空间插值 改进的GTTM 基于地形湍流混合模型 InSAR（Interferometric Synthetic Aperture Radar） atmospheric correction spatial interpolation improved GTTM TDTM
分类号 P228 [天文地球—大地测量学与测量工程]
  • 相关文献

参考文献11

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二级参考文献29

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共引文献19

同被引文献42

引证文献4

二级引证文献21

测绘科学技术学报
2012年 第1期

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