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A simulator for GNSS-R polarimetric observations over the ocean
Schiavulli, Domenico; Ghavidel, Ali; Camps Carmona, Adriano José; Migliaccio, Muriccio
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció
Global Navigation Satellite Systems - Reflec-tometry (GNSS-R) represents an innovative tool for remote sensing. In this paper a facet-based simulator is presented to investigate the polarimetric characteristics of GNSS L-band signals reflected off sea surface. The aim of the proposed technique is to improve the classical simulation technique based on the Zavorotny-Voronovich (Z-V) approach. Therefore, the scattered power and the Delay-Doppler Map are obtained using a time-evolving random 3D sea surface and the Kirchhoff Approximation (KA) of the Physical Optics (PO) to describe the scattering mechanisms. Finally the polarization ratio (PR) between co- and cross-polar scattered signal is fully investigated against different sea surface conditions, i.e. wind speed.
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Radionavegació
Global Positioning System
Bistatic Radar
Facet Approach
Remote Sensing
Sistema de posicionament global
Institute of Electrical and Electronics Engineers (IEEE)

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