Tropospheric and Ionospheric Effects in Spaceborne Single-Pass SAR Interferometry and Radargrammetry
Krieger G, De Zan F, Bachmann M, Lopez Dekker P, Cassola MR, Kim JS (2014)
Publication Type: Conference contribution
Publication year: 2014
Publisher: VDE Verlag GmbH
Edited Volumes: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR
Book Volume: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR
Pages Range: 1097-1100
Conference Proceedings Title: European Conference on Synthetic Aperture Radar (EUSAR)
URI: https://elib.dlr.de/91631/
Abstract
It has often been claimed that spaceborne single-pass cross-track SAR interferometry is - up to an overall range shift - not affected by atmospheric effects. A closer analysis reveals, however, that both the troposphere and the ionosphere may cause notable phase, range and height offsets even in a single-pass interferometer. One such offset is due to slightly different incident angles which cause different path lengths through both the troposphere and the ionosphere. Another subtle effect arises from the wavenumber shift in combination with a dispersive medium like the ionosphere, which may induce differential range offsets in coherent radargrammetry. The analyses in this paper are not only of importance for future low-frequency bistatic SAR missions like Tandem-L, but they may also shed some new light on how the ionosphere can influence repeat-pass interferometry and radargrammetry in case of non-vanishing cross-track baselines.
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Germany (DE)How to cite
APA:
Krieger, G., De Zan, F., Bachmann, M., Lopez Dekker, P., Cassola, M.R., & Kim, J.S. (2014). Tropospheric and Ionospheric Effects in Spaceborne Single-Pass SAR Interferometry and Radargrammetry. In European Conference on Synthetic Aperture Radar (EUSAR) (pp. 1097-1100). VDE Verlag GmbH.
MLA:
Krieger, Gerhard, et al. "Tropospheric and Ionospheric Effects in Spaceborne Single-Pass SAR Interferometry and Radargrammetry." Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR) VDE Verlag GmbH, 2014. 1097-1100.
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