Application of vector parabolic equation method to urban radiowave propagation problems

摘要

The vector parabolic equation method is applied to the modelling of radiowave propagation in the urban environment. As a paraxial version of Maxwell's equations it allows full treatment of 3D electromagnetic scattering which was not possible with scalar versions of the algorithm. The method allows detailed specification of the building geometry and electrical parameters. This approach is particularly useful for accurate modelling of scattering by a single building or a group of buildings at microwave frequencies. The method is validated using an iterative integral equation method and known analytical results. Examples include scattering by a building with hemispherical roof and scattering by a group of buildings with sloping roofs.