ATMOSPHERIC PHASE SCREEN-ESTIMATION FOR PSINSAR APPLIED TO TERRASAR-X HIGH RESOLUTION SPOTLIGHT-DATA

被引：0

作者：

Even, Markus ^{[1
]}

Schunert, Alexander

Schulz, Karsten ^{[1
,2
]}

Soergel, Uwe ^{[2
]}

机构：

[1] Fraunhofer Res Inst Optron & Pattern Recognit, Ettlingen, Germany

[2] Leibniz Univ Hannover, Inst Photogrammetrie & Geoinformat, Hannover, Germany

来源：

2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM | 2010年

关键词：

PSInSAR; TerraSAR-X; atmosphere; kriging; variogram; PERMANENT SCATTERERS;

D O I：

10.1109/IGARSS.2010.5649096

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The PSInSAR technique, invented by Ferretti et. al. [1], [2], [3] ten years ago, meanwhile has proven it's capability for very precise measurement of surface deformations. To achieve this, the influence of the atmospheric phase screen (APS) has to be removed. We investigated the APS for two series of TerraSAR-X high resolution spotlight data of a scene in Bavaria. Our approach was to consider the APS as composed of a phase ramp, a part stratified with height and a turbulent component. We estimated the turbulent component via kriging. The variograms show for short distances a regime which is not visible for lower resolutions. In this paper we discuss the choice of appropriate variogram models with respect to our data.

引用

页码：2928 / 2931

页数：4

共 43 条

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