Multipath Interference of Large-scale Obstacles in Civil Aviation Complex Environmental Airports

This paper mainly studies the multipath interference of large-scale obstacles around the localizer, and proposes a solution to reduce multipath interference by adjusting the planning design. The multipath interference effects of obstacles in different directions have been studied based on the wireless signal propagation, simulation technique and the antenna theory in this paper. Take an airport for example, the theory derivation and the simulation experiment show that even if the obstacles around the runway meet the requirements of civil aviation standards, if the obstacles are relatively large and the clearance signal is relatively strong, which will affect the DDM value of the center line of the runaway. It is necessary to consider the multipath interference of large obstacles in the civil aviation design stage, and finally provides the basis for the construction of the navigation station.