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Forest Height Inversion Using High-Resolution P-Band Pol-InSAR Data

hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorGARESTIER, Franck
hal.structure.identifierONERA - The French Aerospace Lab [Palaiseau]
dc.contributor.authorDUBOIS-FERNANDEZ, Pascale C.
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorCHAMPION, Isabelle
dc.date.accessioned2024-04-08T12:10:42Z
dc.date.available2024-04-08T12:10:42Z
dc.date.issued2008
dc.identifier.issn0196-2892
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196651
dc.description.abstractEnIn this paper, a high-resolution P-band Pol-InSAR data set acquired by the airborne RANISES system over pine forest stands of different height is investigated. A significant penetration depth in all the polarimetric channels and a wide range of polarimetric phase center heights are observed, attesting of an interaction of the radar waves with different forest structural elements. The main objective of this paper concerns forest height inversion at P-band. First, forest-modeling assumptions are evaluated using a priori information, such as ground-level and forest height measurements. The full extend of the forest height is shown to be responsible of the volume decorrelation, and a significant orientation effect is clearly identified over the highest stands. As a consequence, the Oriented Volume over Ground model (OVoG) is determined to be the most appropriated model for the forest height inversion. At P-band, the ground contribution is present in all the polarimetric channels due to the important penetration at this frequency. To overcome this difficulty, a time-frequency optimization method based on sublook decomposition is developed to separate the pure ground and canopy contributions, allowing forest height estimation with OVoG with an rms error on the order of 2 m. In the last section of this paper, a sensitivity analysis of the inversion with respect to two important system parameters, the signal-to-noise ratio and the resolution, is presented, leading to a discussion on the inversion robustness in spaceborne conditions, where these system parameters are the most deteriorated as compared to airborne configurations.
dc.language.isoen
dc.publisherInstitute of Electrical and Electronics Engineers
dc.subjectPOLARIMETRIC RADAR
dc.subject.enFORESTRY
dc.subject.enINTERFEROMETRY
dc.subject.enRADAR IMAGING
dc.title.enForest Height Inversion Using High-Resolution P-Band Pol-InSAR Data
dc.typeArticle de revue
dc.identifier.doi10.1109/TGRS.2008.922032
dc.subject.halPlanète et Univers [physics]/Sciences de la Terre
bordeaux.journalIEEE Transactions on Geoscience and Remote Sensing
bordeaux.page3544 - 3559
bordeaux.volume46
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue11
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-01590469
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01590469v1
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