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Spaceborne Interferometric and Multistatic SAR Systems

Krieger, Gerhard and Moreira, Alberto (2008) Spaceborne Interferometric and Multistatic SAR Systems. In: Bistatic Radar: Emerging Technology John Wiley & Sons. pp. 95-158. ISBN 978-0-470-02631-1.

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This chapter analyses spaceborne multistatic imaging radar systems employing two or more receiver antennas on different platforms. The simultaneous data reception by multiple receivers enables a wealth of new synthetic aperture radar (SAR) imaging modes which evaluate the scattering signals from multiple view angles in combination. Potential application areas of multistatic SAR systems include, but are not limited to, single-pass cross-track and along-track interferometry, spaceborne tomography, wide swath SAR imaging, resolution enhancement, interference suppression, ground moving target indication (GMTI), and multistatic SAR imaging. Some of these applications can also be realized via multiple data acquisitions from repeat satellite passes. However, the simultaneous data acquisition with multiple satellites in a multistatic configuration avoids temporal decorrelation and atmospheric disturbances, improves the performance, and enables the detection of fast changes. This chapter gives a thorough overview of the capabilities and challenges associated with spaceborne interferometric and multistatic SAR missions. After a short introduction to interferometric SAR imaging, several design aspects are considered including phase and time synchronisation, formation and orbit selection, as well as the choice of suitable operational modes. The achievable performance is illustrated by the two mission examples TanDEM-X and TerraSAR-L cartwheel. An outlook on advanced multistatic SAR imaging modes illustrates their future potential for a wide range of remote sensing applications. The chapter is concluded with a discussion of major challenges to implement multistatic SAR missions in space.

Item URL in elib:https://elib.dlr.de/48823/
Document Type:Book Section
Title:Spaceborne Interferometric and Multistatic SAR Systems
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Journal or Publication Title:Bistatic Radar: Emerging Technology
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 95-158
EditorsEmailEditor's ORCID iDORCID Put Code
Publisher:John Wiley & Sons
Keywords:Bistatic SAR, Multistatic SAR, Interferometry
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Entwicklung eines Mini-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute
Deposited By: Krieger, Dr.-Ing. Gerhard
Deposited On:02 Jul 2008
Last Modified:27 Apr 2009 13:51

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