Simulation Analysis and Research on the Influence of Buildings on a DVOR Station

摘要

DVOR is an important navigation device for civil aviation. Due to its own antenna characteristics and radiation pattern, DVOR station has higher requirements on the surrounding field. This paper studies the DVOR station with complex buildings around it, and restores the buildings and terrain around the station through three-dimensional simulation modeling, meanwhile analyzes the DVOR's AM modulation of 9960Hz and AM modulation of 30Hz and the alignment errors of different horizontal elevation angles. The simulation results show that moderately raising the DVOR’s counterpoise and increasing the radius of the DVOR’s counterpoise are an effective way to reduce the interference of surrounding buildings.