On the coherent and non coherent components of bare and vegetated terrain bistatic scattering: Modelling the GNSS-R signal over land

Author

Pierdicca, Nazzareno ; Guerriero, Leila ; Brogioni, Marco ; Egido, Alejandro

Author_Institution

Dept. Inf. Eng., Electron. & Telecommun., Sapienza Univ. of Rome, Rome, Italy

fYear

2012

fDate

22-27 July 2012

Firstpage

3407

Lastpage

3410

Abstract

The work presented in this paper has been carried out with the aim of interpreting the data of a GNSS Reflectometer (GNSS-R) over land. The problem involves the analysis of bistatic scattering of the incoming signal collected around the specular direction. This requires to model the coherent component associated to the mean surface but at the same time the diffuse incoherent component due to roughness at wavelength scale. In presence of vegetation, both components will be affected, the former mainly because of the canopy attenuation and the latter for the combined effect of attenuation and volume scattering. The paper reviews the problem and presents the approach followed to develop a simulator of GNSS-R data over land, aiming to support potential applications of GNSS-R for soil moisture and biomass retrieval.

Keywords

geophysical signal processing; moisture measurement; remote sensing; soil; GNSS Reflectometer data; GNSS-R data; GNSS-R signal; bare terrain bistatic scattering; biomass retrieval; noncoherent component; soil moisture; vegetated terrain bistatic scattering; Land surface; Optical surface waves; Rough surfaces; Scattering; Sea surface; Surface roughness; Surface waves; GNSS-R; bistatic scattering; land applications;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International

Conference_Location

Munich

ISSN

2153-6996

Print_ISBN

978-1-4673-1160-1

Electronic_ISBN

2153-6996

Type

conf

DOI

10.1109/IGARSS.2012.6350689

Filename

6350689