An efficient technique based on two-dimensional Fast Fourier Transform (FFT) and linear interpolation is presented for the evaluation of the scattering by a rough terrain surface which is of interest in remote-sensing applications characterized by a very large correlation length. Such technique, where introduced in a BMIA/CAG method, can reduce the computation time appreciably.
Modified BMIA/CAG method for the electromagnetic analysis of large-scale problems of random rough surface scattering / P. DE VITA; A. MORI ; A. FRENI; M. CALAMIA. - In: NUOVO CIMENTO DELLA SOCIETÀ ITALIANA DI FISICA. C, GEOPHYSICS AND SPACE PHYSICS. - ISSN 1826-9885. - STAMPA. - 24C(1):(2001), pp. 1-10.
Modified BMIA/CAG method for the electromagnetic analysis of large-scale problems of random rough surface scattering
DE VITA, PAOLO;FRENI, ANGELO;CALAMIA, MARIO
2001
Abstract
An efficient technique based on two-dimensional Fast Fourier Transform (FFT) and linear interpolation is presented for the evaluation of the scattering by a rough terrain surface which is of interest in remote-sensing applications characterized by a very large correlation length. Such technique, where introduced in a BMIA/CAG method, can reduce the computation time appreciably.
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