Parabolic Equation Method Solving Wave Propagation in Tunnels in Complex Meteorological Environments

Abstract

In this paper, a parabolic equation method for wave propagation in tunnels is raised. To solve parabolic equation, split-step Fourier Transform has been introduced. Then the expressions of refractivity describing the complex meteorological environment are provided. The wave propagation in tunnels can be predicted by amending the refractivity in PE.