SCATTERING MECHANISM ANALYSIS USING MULTI-ANGULAR POLARIMETRIC RADARSAT-2 DATASETSReportar como inadecuado




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1 IETR - Institut d-Electronique et de Télécommunications de Rennes

Abstract : The objective of this study is to analyze scattering mecha- nisms using multi-incidence angle observations over agri- cultural fields.
Radarsat-2 datasets acquired in the end of March - beginning of April with four different ranges of incidence angle are explored using polarimetric decom- position methodology.
The results show that single scat- tering is always the dominant scattering mechanism over test sites, although single scattering occurs on bare sur- face is significantly stronger than that occurs in vegeta- tion canopy.
As incidence angle increases, single scatter- ing decreases, and volumetric scattering increase as ex- pected.
Therefore, lower incidence angle acquisition is appropriate to characterize soil moisture over bare sur- face due to the limited effect of roughness, while higher incidence angle is suitable for surface roughness iden- tification over bare surface and plant height description over vegetation canopy.
Nevertheless, as the incidence angle increases towards 40





Autor: Hongquan Wang - Sophie Allain - Stéphane Meric - Eric Pottier -

Fuente: https://hal.archives-ouvertes.fr/



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