A Small Low-Cost SAR Satellite for InSAR Measurements of Permanent Scatterers

Hounam D, Moreira A, Mittermayer J, Krieger G (2004)

Publication Type: Conference contribution

Publication year: 2004

Publisher: VDE Verlag

Book Volume: 1

Pages Range: 49-52

Conference Proceedings Title: European Conference on Synthetic Aperture Radar (EUSAR)

URI: https://elib.dlr.de/6205/

Abstract

A major driver for the cost of a SAR satellite is the size of the antenna, which largely determines the dimensions of the payload, and, hence, indirectly of the whole satellite. Apart from influencing the sensitivity of the SAR, the dimensions of the SAR antenna also determine the width of the imaged swath and the strength of ambiguous responses. Ambiguities appear as ghosts or additional noise in the image. Techniques are discussed for suppress-ing ambiguities during processing, which are demonstrated to be viable for point targets. Targets with scattering characteristics which are stable over long periods of time can be used with interferometric SAR (InSAR) techniques to monitor small displacements. As these so-called permanent scatterers have point target characteristics and a relatively high RCS, a SAR instrument with a small antenna can be considered. It has been demonstrated that an interferometric SAR system measuring the long-term motion of permanent scatterers placed in geologically instable regions can serve a range of important and lucrative applications.

Authors with CRIS profile

Gerhard Krieger

Additional Organisation(s)

Professur für Kognitive Radarsysteme für die Fernerkundung

Involved external institutions

Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR) / German Aerospace Center DE Germany (DE)

How to cite

APA:

Hounam, D., Moreira, A., Mittermayer, J., & Krieger, G. (2004). A Small Low-Cost SAR Satellite for InSAR Measurements of Permanent Scatterers. In ITG VDE (Eds.), European Conference on Synthetic Aperture Radar (EUSAR) (pp. 49-52). VDE Verlag.

MLA:

Hounam, David, et al. "A Small Low-Cost SAR Satellite for InSAR Measurements of Permanent Scatterers." Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR) Ed. ITG VDE, VDE Verlag, 2004. 49-52.

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