Comparaçãode Janelas de Amortecimento Aplicadas à Solução de Equações Parabólicas no Domínio do Tempo

In this work, a formulation was developed for parabolic equations in the time domain (TDPE), considering nonhomogeneous atmosphere and disregarding backscattering. The formulation uses as base the frequency domain and through a special Fourier transform defined by Popov there is the conversion to the time domain. The Cranck-Nicolson method is used for numerical analysis of the finite difference formulation. The simulations were performed considering irregular, real relief and different types of damping windows such as Hanning, Hanning-Poisson, Hamming and Kaiser Window as a way to analyze the one that performs better.