Development of TanDEM-X DEM calibration concept

Author

González, J. Hueso ; Bachmann, M. ; Fiedler, H. ; Huber, S. ; Krieger, G. ; Wessel, B. ; Zink, M.

Author_Institution

German Aerosp. Center (DLR), Oberpfaffenhofen

fYear

2007

fDate

10-12 Oct. 2007

Firstpage

464

Lastpage

467

Abstract

The TanDEM-X mission (A. Moreira et al., 2004) comprises two fully active synthetic aperture radar satellites operating in X-band. The primary goal of this mission is the derivation of a high-precision global digital elevation model (DEM) according to HRTI level 3 quality. This requires accurate calibration of the interferometric system parameters, where the interferometric height is determined by the phase difference between the two images and the spatial geometry. Content of this paper is the development of a general concept for this calibration, which has a key incidence on mission aspects like the data acquisition plan and the data take adjustment and mosaicing.

Keywords

artificial satellites; calibration; data acquisition; digital elevation models; synthetic aperture radar; HRTI level 3 quality; TanDEM-X digital elevation model; X-band; active synthetic aperture radar satellites; data acquisition plan; data mosaicing; data take adjustment; interferometric system parameters calibration; spatial geometry; Calibration; Data acquisition; Frequency synchronization; Geometry; Instruments; Radar remote sensing; Satellites; Signal to noise ratio; Synthetic aperture radar; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference, 2007. EuRAD 2007. European

Conference_Location

Munich

Print_ISBN

978-2-87487-004-0

Type

conf

DOI

10.1109/EURAD.2007.4405038

Filename

4405038