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Proceedings Paper

Analysis of scattering from fractally rough surfaces by using the T-matrix method
Author(s): Xiande Wang; Xianyun Luo; Zhongzhi Zhang; Junmei Fu
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Paper Abstract

In this paper, a time-varying band-limited fractal model is proposed for modeling dynamic evolution of sea surface. A new method for scattering from fractally rough perfectly conducting or dielectric surfaces is formulated with use of the T-matrix analysis and the extended boundary condition method. We expand the field through generalized Floquet modes and obtain the analytical formula of the expression of matrix elements in the term of the Bessel functions. We obtain analytical closed-form expression for the scattering amplitudes for both horizontal and vertical polarization of the incident electromagnetic waves. The validity of this method is checked through the energy-balance parameter and comparison with approximate method. Backscattering energy pattern versus incident angle, fractal dimension have also been discussed. We also calculate the scattering coefficient as function of time using this method. Finally, numerical scattering results from fractal surfaces are provided.

Paper Details

Date Published: 19 August 1998
PDF: 11 pages
Proc. SPIE 3503, Microwave Remote Sensing of the Atmosphere and Environment, (19 August 1998); doi: 10.1117/12.319478
Show Author Affiliations
Xiande Wang, China Research Institute of Radiowave Propagation (China)
Xianyun Luo, China Research Institute of Radiowave Propagation (China)
Zhongzhi Zhang, China Research Institute of Radiowave Propagation (China)
Junmei Fu, Xi'an Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 3503:
Microwave Remote Sensing of the Atmosphere and Environment
Tadahiro Hayasaka; Dong Liang Wu; Yaqiu Jin; JingShang Jiang, Editor(s)

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