Articles | Volume 15
https://doi.org/10.5194/ars-15-231-2017
https://doi.org/10.5194/ars-15-231-2017
21 Sep 2017
 | 21 Sep 2017

Large-baseline InSAR for precise topographic mapping: a framework for TanDEM-X large-baseline data

Muriel Pinheiro, Andreas Reigber, and Alberto Moreira

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Cited articles

Bamler, R. and Hartl, P.: Synthetic aperture radar interferometry, Inverse Problems, 14, R1–R54, 1998.
Buckreuss, S. and Zink, M.: TerraSAR-X and TanDEM-X Mission Status, in: Proceedings of EUSAR 2016: 11th European Conference on Synthetic Aperture Radar, Hamburg, Germany, 1–6, 6–9 June 2016.
Chen, C. and Zebker, H.: Two-dimensional phase unwrapping with use of statistical models for cost functions in nonlinear optimization, J. Opt. Soc. Am. A, 18, 338–351, 2001.
De Zan, F., Krieger, G., and Lopez-Dekker, P.: Observations and discussions of TanDEM-X interferogram spectra over rain forest, in: IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Munich, Germany, 5554–5557, 22–27 July 2012.
Ferraioli, G., Shabou, A., Tupin, F., and Pascazio, V.: Multichannel Phase Unwrapping With Graph Cuts, IEEE Geosci. Remote Sens. Lett., 6, 562–566, 2009.
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Short summary
This paper proposes a dual-baseline framework for the unwrapping of large-baseline interferometric SAR data. The algorithm aims at the efficient retrieval of absolute phase measurements regardless the very high frequency of the phase variations associated with large-baseline data. Hence, it promotes the recovery of digital elevation models with very high vertical accuracy, claim which is corroborated by the results obtained from two experiments using data acquired with the TanDEM-X sensor.