FN Archimer Export Format
PT J
TI A simplified asymptotic theory for ocean surface electromagnetic wave scattering
BT 
AF MOUCHE, Alexis
   CHAPRON, Bertrand
   REUL, Nicolas
AS 1:1,2;2:2;3:2;
FF 1:;2:PDG-DOP-DCB-OPS-LOS;3:PDG-DOP-DCB-OPS-LOS;
C1 Ctr Natl Etud Spatiales, Paris, France.
   IFREMER, F-29280 Plouzane, France.
C2 CNES, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-DOP-DCB-OPS-LOS
IN WOS Ifremer jusqu'en 2018
   copubli-france
IF 0.759
TC 38
UR https://archimer.ifremer.fr/doc/2007/publication-3001.pdf
LA English
DT Article
AB The normalized radar cross-section ( NRCS) expression of the Local Curvature Approximation (LCA-1) is derived to first order. The polarization sensitivity of this model is compared to the Kirchhoff Approximation ( KA), Two-Scale Model (TSM), Small Slope Approximation (SSA-1) and Small Perturbation Method (SPM-1) to first order in the backscattering configuration. Analytical comparisons and numerical simulations show that LCA-1 and TSM could be rewritten with the same formulation and that their polarization sensitivities are comparable. Comparisons with experimental data acquired in C- and Ku-band reveal that the polarization sensitivities of these models are not adequate. However, the NRCS azimuth modulation predicted by LCA-1 is found to be dependent on polarization and sea surface roughness. This property of the LCA-1 model yields to an azimuth modulation for the polarization ratio. Based on the surface curvature correction concept, a simplified electromagnetic model is proposed. The curvature correction is restricted to the resonant wave-number of the sea roughness spectrum. This is found to reproduce the polarization ratio given by experimental data versus incidence angle and wind speed.
PY 2007
PD AUG
SO Waves in Random and Complex Media
SN 1745-5030
PU Taylor & Francis
VL 17
IS 3
UT 000248974100006
BP 321
EP 341
DI 10.1080/17455030701230261
ID 3001
ER

EF