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A new theoretical framework for retrieval of dielectric and geometric surface parameters from electromagnetic backscattering data is presented. Use is made of fractal geometry for description of the surface. The suggested scheme leads to a two step procedure that allows to retrieve the surface complex permittivity and the fractal parameters. Limits of validity for the procedure applicability are presented. Robustness of the method is checked against input data measurement errors anddoi:10.1109/36.841994 fatcat:mxxd3f56frel3o36yvadvmlnee