Digital elevation models of TanDEM-X mission

Abstract

Started in 2010 TanDEM-X mission (TerraSAR-X add-on for Digital Elevation Measurement) is the first spaceborne radar interferometer mission that acquires interferometric data in bistatic InSAR stripmap mode with two spacecrafts TerraSAR-X (TSTSX) and TanDEM-X (TDX) flying in Helix formation. That configuration enables generation of a global digital elevation model compatible with the HRTIRTI-3 standard. This paper presents an overview and specification of primary products of the TanDEM-X mission, i.e. digital elevation models and additional components such as information layers and masks. Moreover, the use of radar interferometry techniques for generation of the digital elevation model (DEM) and applications of InSAR are discribed.[b]Keywords[/b]: TanDEM-X, SRTSRTSRTM, interferometry synthetic aperture radar, digital elevation model, digital surface model

Keywords

• TanDEM-X
• SRTM
• interferometry synthetic aperture radar
• Digital Elevation Model
• Digital Surface Model