Title :
Microwave scattering from a slightly rough surface of a medium possessing a finite large dielectric constant, and applications to an air-water scattering
Author :
Nedlin, G.M. ; Chubb, S.R. ; Cooper, A.L.
Author_Institution :
Remote Sensing Div., Naval Res. Lab., Washington, DC, USA
Abstract :
A theory for electromagnetic scattering from a slightly rough surface is developed that is based on application of an effective boundary condition. The theory generalizes previous approaches that apply only to the infinite dielectric constant (ε→∞) limit to cases of finite but large ε. Also, the theory yields the known results by J. Wright. In a particularly important case of scattering from the ocean, the backscatter cross-section is dramatically different from that calculated for ε→∞ over a wide range of incident angles, for both vertical and horizontal polarization
Keywords :
backscatter; electromagnetic wave scattering; oceanographic techniques; radar cross-sections; radar polarimetry; radar theory; remote sensing by radar; air-water scattering; backscatter; backscattering cross-section; effective boundary condition; electromagnetic scattering; finite large dielectric constant; incidence angle; infinite dielectric constant; measurement technique; microwave scattering; ocean; polarization; radar polarimetry; radar remote sensing; radar scattering; radar theory; radiowave reflection; sea surface; slightly rough surface; Backscatter; Boundary conditions; Corrugated surfaces; Dielectric constant; Electromagnetic scattering; Principal component analysis; Rough surfaces; Sea surface; Surface roughness; Surface waves;
Conference_Titel :
Geoscience and Remote Sensing, 1997. IGARSS '97. Remote Sensing - A Scientific Vision for Sustainable Development., 1997 IEEE International
Print_ISBN :
0-7803-3836-7
DOI :
10.1109/IGARSS.1997.609027