NDLI: Temporal Decorrelation impacts on repeat pass tomography in a tropical forest

Content Provider	IEEE Xplore Digital Library
Author	Minh, D.H.T. Tebaldini, S. Le Toan, T. Rocca, F.
Copyright Year	2015
Description	Author affiliation: IRSTEA, Montpellier, France (Minh, D.H.T.) \|\| DEIB, Politec. di Milano, Milan, Italy (Tebaldini, S.; Rocca, F.) \|\| CESBIO, Toulouse, France (Le Toan, T.)
Abstract	The objective of this paper is to provide a better understanding of the impact of temporal decorrelation on the tomography phase of the P-band Synthetic Aperture Radar (SAR) BIOMASS mission, 7-th Earth Explorer of the European Space Agency. In this context, in the framework of the Phase A studies of the BIOMASS mission, the airborne TropiSAR 2009 and ground-based TropiScat 2011 experiments were conducted over the site of the tropical forest Paracou, French Guiana. The P-band SAR tomographic data acquired during TropiSAR campaign allowed us to reconstruct 3-D high resolution data, whereas TropiScat experiment provided vertical temporal coherence of the vegetation. These data therefore allow us to generate a BIOMASS P-band SAR data stack that accounts for both the 6 MHz bandwidth limit and temporal decorrelation. To do this, we developed a tomo-graphic simulator, which can combine 3-D high resolution data from TropiSAR and the temporal decorrelation from TropiScat data-sets, to provide the most realistic temporal BIOMASS tomographic data. The resulting tomograms and forest heights were observed to change acceptably as long as the revisit time is 4 days or less. Therefore, the revisit time for the BIOMASS tomographic phase at 3-4 days as proposed should be feasible.
Starting Page	1555
Ending Page	1558
File Size	473074
Page Count	4
File Format	PDF
e-ISBN	9781479979295
DOI	10.1109/IGARSS.2015.7326078
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-26
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Decorrelation Tomography Biomass Bandwidth Three-dimensional displays Biological system modeling Geoscience and remote sensing IRSTEA TomoSAR toolkit P-band tomography temporal decor-relation BIOMASS tomography forest vertical structure
Content Type	Text
Resource Type	Article

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