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

Hugo Daniel Melo Ferreira, Cássio Gonçalves do Rego, Gláucio Lopes Ramos

DOI: 10.14209/sbrt.2018.262

Evento: XXXVI Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2018)

Keywords: Parabolic Equation Nonhomogeneous Atmosphere Cranck-Nicolson Method Damping Windows

Abstract

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.

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