NDLI: Two-dimensional full-wave scattering from discrete random media in layered rough surfaces

Content Provider	IEEE Xplore Digital Library
Author	Chih-hao Kuo Moghaddam, M.
Copyright Year	2007
Description	Author affiliation: Univ. of Michigan Ann Arbor, Ann Arbor (Chih-hao Kuo; Moghaddam, M.)
Abstract	Modeling of electromagnetic scattering from discrete random media in layered rough surfaces finds various applications, including depth retrieval of layered snow-covered ice and remote sensing of vegetation canopy. In this paper, a coherent technique for solving scattering from discrete random media in layered rough surfaces is presented. The significance of the development of a full-wave solution to this problem stems from the fact that both co-polarized phase difference and polarized scattering coefficients can only be accurately determined using a coherent approach. Therefore, the objective of this paper is to formulate a full-wave solution for scattering from discrete random media in layered rough surfaces as well as to demonstrate the potential in the retrieval of subsurface parameters pertaining to the physical properties of rough surfaces and discrete random media using polarized scattering coefficients and co- polarized phase difference. The core of our technique lies in the use of plane wave decomposition. Plane wave solution for the scattered field due to a rough surface is obtained using extended boundary condition method (EBCM). The recursive T-matrix algorithm together with cylindrical-waves-to-plane-waves transformation matrices is employed to deal with scattering from discrete random media. Subsequently, plane wave solutions for the scattered fields due to rough surfaces and discrete random media are then cast into reflection and transmission matrices. These reflection and transmission matrices facilitate the application of scattering matrix technique which coherently accounts for electromagnetic interactions between layered rough surfaces and discrete random media. Various numerical results are examined and it is shown that the subsurface parameters may significantly impact backscattering coefficients and co-polarized phase difference even when the subsurface ground is covered by a rough layer of discrete random media.
Starting Page	2566
Ending Page	2569
File Size	489967
Page Count	4
File Format	PDF
ISBN	9781424412112
DOI	10.1109/IGARSS.2007.4423368
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-07-23
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Random media Rough surfaces Surface roughness Electromagnetic scattering Polarization Scattering parameters Surface waves Electromagnetic reflection Electromagnetic modeling Ice surface
Content Type	Text
Resource Type	Article

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