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Polarization Impact in TanDEM-X Data Over Vertical-Oriented Vegetation: The Paddy-Rice Case Study

Erten, Esra and Rossi, Cristian and Yuzugullu, Onur (2015) Polarization Impact in TanDEM-X Data Over Vertical-Oriented Vegetation: The Paddy-Rice Case Study. IEEE Geoscience and Remote Sensing Letters, 12 (7), pp. 1501-1505. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/LGRS.2015.2410339. ISSN 1545-598X.

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Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7063930&tag=1


It has been recently shown that the TanDEM-X mission is capable of tracking the plant growth of rice paddies. The precision of the elevation measure depends on the physical interaction between the synthetic aperture radar (SAR) signal and the canopy. In this letter, this interaction is studied by considering the signal polarization. In particular, the vertical and horizontal wave polarizations are compared, and their performance in the temporal mapping of the crop height is analyzed. The temporal elevation difference analysis shows a monotonically increasing trend within the reproductive stage of the canopy, with maximum height discrepancies between polarizations of about 9 cm. From an operational point of view of InSAR-based vegetation height measurements, this letter demonstrates that the oriented structure of the canopy shall be considered not only in polarimetric InSAR studies but also in the interpretation of bistatic spaceborne interferometric elevation models.

Item URL in elib:https://elib.dlr.de/97812/
Document Type:Article
Title:Polarization Impact in TanDEM-X Data Over Vertical-Oriented Vegetation: The Paddy-Rice Case Study
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Rossi, Cristiancristian.rossi (at) dlr.deUNSPECIFIED
Date:July 2015
Journal or Publication Title:IEEE Geoscience and Remote Sensing Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1109/LGRS.2015.2410339
Page Range:pp. 1501-1505
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:Agriculture, copolar phase difference (CPD), polarimetry, synthetic aperture radar (SAR), TanDEM-X, X-Band
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Projekt TanDEM-X (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Rossi, Cristian
Deposited On:13 Aug 2015 18:01
Last Modified:31 Jul 2019 19:54

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