Title :
An Improved Two-Scale Model for the Ocean Surface Bistatic Scattering
Author :
Sajjad, Naheed ; Khenchaf, Ali ; Coatanhay, Arnaud ; Awada, Ahmad
Author_Institution :
E3I2-Lab., ENSIETA, Brest
Abstract :
Remote sensing applications require developing accurate models to predict radar bistatic scattering from rough surfaces. In this context, an improved two-scale model (TSM) is proposed for electromagnetic bistatic scattering from sea surface. The simplest TSM combines the first order small perturbation method (SPM1) with Kirchhoff Approximation. We add the second order SPM contribution to SPM1 to develop an improved TSM. The calculations are made by assuming the surface-height spectrum of Elfouhaily et al. for fully developed seas. In backscattering configuration the numerical results are compared with the published experimental data and SSA. The new TSM results are in good agreement with the experimental data specially, in cross-polarization. Finally, we use the new TSM to predict the sea scattering in bistatic configuration and compare the results with SSA.
Keywords :
marine radar; ocean waves; Kirchhoff Approximation; SPM1; Small Slope Approximation; TSM; backscattering configuration; electromagnetic bistatic scattering; first order small perturbation method; ocean surface; radar bistatic scattering; remote sensing applications; surface-height spectrum; two-scale model; Electromagnetic scattering; Oceans; Predictive models; Radar applications; Radar remote sensing; Radar scattering; Remote sensing; Rough surfaces; Sea surface; Surface roughness;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4778875