Stochastic simulation of delay-Doppler maps for GNSS-R

A new approach for simulation of delay-Doppler maps for ocean global navigation satellite system reflectometry is presented. The simulator is based on a stochastic forward scattering model for generation of realizations of the sea surface reflected signal and allows a flexible definition of system a...

Full description

Saved in:
Bibliographic Details
Published in2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) pp. 4777 - 4780
Main Authors Addabbo, P., Beltramonte, T., D'Addio, S., di Bisceglie, M., Galdi, C., Giangregorio, G., Ullo, S. L.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2015
Subjects
Delays
Doppler effect
Global Navigation Satellite Systems-Reflectometry (GNSS-R)
Global Positioning System
scattering
Sea surface
sea surface roughness
simulation
Surface treatment
Wind speed
Online AccessGet full text

Cover

More Information
Summary:A new approach for simulation of delay-Doppler maps for ocean global navigation satellite system reflectometry is presented. The simulator is based on a stochastic forward scattering model for generation of realizations of the sea surface reflected signal and allows a flexible definition of system and environmental parameters. The signal scattered from a delay Doppler cell is modelled as the coherent random sum of a large number of components from specular points; the sum converges to a compound-Gaussian random variable when the mean number of points is sufficiently large. In the proposed simulation process, the discretization of the DDM arises from a natural sampling of the delay-Doppler domain rather than on sampling the ocean surface. Instantaneous DDMs are simulated and consistency with the theoretical model is verified.
ISSN:2153-6996
2153-7003
DOI:10.1109/IGARSS.2015.7326898