Double-Bounce Contribution Effect in the Estimation of Biophysical Parameters of Vegetation Based on PolInSAR TanDEM-X Bistatic Data

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Title: Double-Bounce Contribution Effect in the Estimation of Biophysical Parameters of Vegetation Based on PolInSAR TanDEM-X Bistatic Data
Authors: Romero-Puig, Noelia | Lopez-Sanchez, Juan M. | Ballester Berman, Josep David
Research Group/s: Señales, Sistemas y Telecomunicación
Center, Department or Service: Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Instituto Universitario de Investigación Informática
Keywords: Interferometría polarimétrica | Radar de apertura sintética | Vegetación | TanDEM-X
Knowledge Area: Teoría de la Señal y Comunicaciones
Issue Date: 30-Jan-2019
Abstract: In this work we provide a detailed analysis of the effect of the double-bounce decorrelation factor on the inversion of scene parameters, with particular focus on the vegetation height. The study employs both simulated data as well as real data acquired over rice fields during the science phase of the TanDEM-X mission. The potential limitations of current inversion approaches are assessed, and the influence of both system parameters (i.e. incidence angle) and scene parameters (i.e. extinction coefficient and ground-to-volume ratios) is evaluated. Results show that the bias in the estimation of scene parameters is higher when the incidence angle is above 30 degrees, i.e for shallow incidences. The normalised vegetation height, i.e. expressed as kv , is used in order to extrapolate the results to other scenarios, e.g. forests.
Description: Proceedings of the 9th International Workshop on Science and Applications of SAR Polarimetry and Polarimetric Interferometry (POLinSAR'2019), Frascati, Italia.
Sponsor: Ministerio de Ciencia, Innovación y Universidades, Agencia Estatal de Investigación (AEI) y Fondos FEDR. Proyecto TEC2017-85244-C2-1-P. Generalitat Valenciana y Fondo Social Europeo (ESF), ref. ACIF/2018/204.
URI: http://hdl.handle.net/10045/88348
Language: eng
Type: info:eu-repo/semantics/conferenceObject
Rights: © The authors
Peer Review: si
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