Proposal on Hybrid Propagation Analysis of Aperture Field Integration Method and Ray Tracing Method Suitable for Airport Surface in VHF Band

A hybrid propagation analysis, combining the ray-tracing and aperture-field-integration methods, for an airport surface is proposed. Its effectiveness was evaluated using measurements obtained with 1/50 scaled model. The results indicate that the simulated and measured power distributions of the proposed method were in agreement. The proposed analysis method can more effectively locate the optimal antenna position, which can be applied to GBAS.