TanDEM-X: A satellite formation for high-resolution SAR interferometry

被引：1235

作者：

Krieger, Gerhard ^{[1
]}

Moreira, Alberto ^{[1
]}

Fiedler, Hauke ^{[1
]}

Hajnsek, Irena ^{[1
]}

Werner, Marian ^{[1
]}

Younis, Marwan ^{[1
]}

Zink, Manfred ^{[1
]}

机构：

[1] German Aerosp Ctr, Microwaves & Radar Inst, D-82234 Oberpfaffenhofen, Germany

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2007年 / 45卷 / 11期

关键词：

bistatic SAR; digital elevation model (DEM); formation flying; interferometry; microwave remote sensing; multistatic SAR; synchonization; synthetic aperture radar (SAR);

D O I：

10.1109/TGRS.2007.900693

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

TanDEMA (TerraSAR-X add-on for Digital Elevation Measurements) is an innovative spaceborne radar interferometer that is based on two TerraSAR-X radar satellites flying in close formation. The primary objective of the TanDEMA mission is the generation of a consistent global digital elevation model (DEM) with an unprecedented accuracy, which is equaling or surpassing the HRTI-3 specification. Beyond that, TanDEM-X provides a highly reconfigurable platform for the demonstration of new radar imaging techniques and applications. This paper gives a detailed overview of the TanDEM-X mission concept which is based on the systematic combination of several innovative technologies. The key elements are the bistatic data acquisition employing an innovative phase synchronization link, a novel satellite formation flying concept allowing for the collection of bistatic data with short along-track baselines, as well as the use of new interferometric modes for system verification and DEM calibration. The interferometric performance is analyzed in detail, taking into account the peculiarities of the bistatic operation. Based on this analysis, an optimized DEM data acquisition plan is derived which employs the combination of multiple data takes with different baselines. Finally, a collection of instructive examples illustrates the capabilities of TanDEM-X for the development and demonstration of new remote sensing applications.

引用

页码：3317 / 3341

页数：25

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