Monte Carlo simulation of random rough surface is carried out using the finite‐difference time‐domain (FDTD) method. The solution domain is truncated using a periodic and an absorbing boundary condition. The advantages of using FDTD include (1) matrix inversion is eliminated, (2) time‐domain response is readily available, and (3) scattering intensities for a range of frequencies can be obtained simultaneously.
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Chan et al. (1991) studied this question.
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