Comprehensive Analysis of Spherical Wave Propagation in a Hilly Terrain using Uniform Theory of Diffraction

In this paper, field at the receiver which faces multiple diffractions of spherical wave by two hills of same height is calculated by the use of deterministic modeling. The contribution due to the various components of wave reaching the receiver is taken into consideration along with the effects of diffractions from the hill tops and reflections from ground. The hill top is taken as knife edge and ground is considered as perfectly reflecting surface. Depending upon the transmitter height various possible ray contributions are taken into considerations. Both hard and soft polarizations are taken into account while calculating the results at different frequencies.