Abstract

In the low grazing angle (LGA) incidence problem of rough surface, the surface length must be long enough which corresponds to a large matrix's dimension. If the method of moment is used directly, the computational speed will be very slow. In this paper, the banded matrix iterative approach\ canonical grid method (BMIA\CAG) combined with MOM is applied to calculate the large scale scattering problem of rough surface. The speed is greatly accelerated by this arithmetic, the larger the dimension, the more the times than MOM. Then, the influence of bandwidth of the matrix to the arithmetic is analyzed. At last, the bistatic scattering coefficient of fractal rough surface is gained at LGA case.

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