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polarimetric scattering from a two-dimensional improved sea fractal surface

Chinese Physics B 2010年第7期19卷 221-229页

作者：刘伟郭立新吴振森 School of Science Xidian University

This paper studies the influence of wind parameters and fractal dimension from an improved two-dimensional sea fractal surface on the polarimetric scattering by using facet integration. A two-dimensional improved sea surface simulated is discretized into three matrices of sea surface facets including a height matrix and two slope matrices on orthogonal directions. Based on the Kirchhoff approximation, the polarimetric scattered field is derived in the Cartesian coordinate system by integration of three matrices mentioned above. Finally, the fully polarised radar cross section is numerically simulated and the dependence of the polarimetric scattering on the sea fractal surface, such as the wind speed, the wind direction, as well as the fractal dimension, is discussed in detail.

关键词： polarimetric scattering sea fractal surface wind speed wind direction

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Temporal Mueller matrix solution for polarimetric scattering from in homogeneous random media of non-spherical scatterers

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Progress in Natural Science:Materials International 2002年第7期 59-67页

作者： CHANG Mei and JIN Yaqiu(Center for Wave scattering and Remote Sensing, Fudan University, Shanghai 200433, China) Center for Wave scattering and Remote Sensing Fudan University Shanghai 200433 China

polarimetric scattering from inhomogeneous random media of non-spherical scatterers under a pulse incidence is studied. The time-dependent Mueller matrix solution of vector radiative transfer for layering random media is derived. Co-polarized and cross-polarized bistatic and back-scattering are numerically simulated. The shape and intensity of polarized echoes well depict the inhomogeneous fraction profile of random scatterers. Its functional dependence upon the fraction profile, layering thickness, and other parameters are discussed. This technique is applicable to reconstruction of inhomogeneous fraction profile and inversion of the media thickness.

关键词： polarimetric scattering inhomogeneous random media Mueller matrix non-spherical scatterers.

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