VALIDATION OF TIE-POINT CONCEPTS BY THE DEM ADJUSTMENT APPROACH OF TANDEM-X

被引：12

作者：

Huber, M. ^{[1
]}

Gruber, A. ^{[1
]}

Wessel, B. ^{[1
]}

Breunig, M. ^{[1
]}

Wendleder, A. ^{[1
]}

机构：

[1] German Aerosp Ctr DLR, D-82234 Oberpfaffenhofen, Wessling, Germany

来源：

2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM | 2010年

关键词：

TanDEM-X; Calibration; Tie-points;

D O I：

10.1109/IGARSS.2010.5652930

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The aimed accuracies for the final TanDEM-X DEM of 10m absolute and 2m relative height error will be ensured by calibration data. One crucial data set for the relative accuracy is tie-points that connect adjacent DEM acquisitions in the approximately 4km-overlap-area with each other. In this paper an improved concept for tie-point candidates is presented that is based on averaging a larger region instead of comparing single points. This concept should be more robust against noise. It is validated by applying the DEM calibration on a simulated test area, as real TanDEM-X data was not yet available. Also, the DEM calibration will be validated for the first time on a larger "real" test site by applying the TanDEM-X processing scenario.

引用

页码：2644 / 2647

页数：4