Simulation and validation of signal interference of a conventional VOR

Abstract : Skyguide, the Swiss air navigation service provider, is responsible for the operation of its CNS infrastructure in compliance with international and national regulations. Therefore it is also tasked to assess the electromagnetic impact of planned buildings or temporary obstacles on its systems. In the case of the VOR (Very High Frequency Omni Directional Range) this requires a rigorous electromagnetic modelling of the scattering behavior of the obstacles in order to model the impacts with sufficient precision. Therefore a detailed 3D MoM simulation model of a conventional VOR (CVOR) has been established. It has been validated by comparing simulation and measurements of the impact of nearby obstacles with UAV measurements. Both the simulation approach and the validation with measurements will be presented. In a next step the model will be applied to the simulation of the impact of wind turbines.