Title :
Full wave analysis of VHF-UHF forest bistatic scattering mechanisms an investigation on the influence of electromagnetic coupling
Author :
Bellez, S. ; Roussel, H. ; Dahon, C.
Author_Institution :
L2S - DRE, Supelec, Gif-sur-Yvette, France
Abstract :
A 3D coherent scattering model simulating the interaction of electromagnetic waves with forests has been developed. It is obtained by means of a full wave approach, based on an integral representation of the electric field. A method of moments is used to solve the integral equation and compute the scattered fields related to the various scattering mechanisms as well as the contribution of tree-trunks and branches. This model is used here to evaluate the impact of electromagnetic coupling effects between a group of scatterers (which can be the branches and the trunk of a single tree, multiple tree-trunks, or multiple trees) for monostatic and/or bistatic radar configurations. To validate our model, we compare our simulation results with anechoic chamber measurements.
Keywords :
electric field effects; electromagnetic coupling; electromagnetic wave scattering; integral equations; method of moments; trees (mathematics); 3D coherent scattering model; VHF-UHF forest bistatic scattering; bistatic radar configuration; electric field; electromagnetic coupling effect; electromagnetic waves; full wave analysis; integral equation; method of moments; monostatic radar configuration; multiple tree-trunks; multiple trees; Computational modeling; Electromagnetic coupling; Electromagnetic scattering; Mathematical model; Moment methods; Solid modeling; Bistatic measurements; Dyadic Green´s fonction; Forest Scattering; Scattering mechanisms;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-9565-8
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2010.5650055
