A Method for Eliminating the Multipath Effect of Hangars on Spatial Signals of Localizer

In recent years, there has been an increasing demand for new buildings in close to runways, but this also poses a great challenge to flight safety. The buildings close to the runway and close to the localizer can easily lead to large-angle reflections between the spatial signals of the localizers and the buildings, which exacerbates the complexity of the multipath effect. Therefore, suppressing or eliminating the multipath effect generated by buildings near the airport runway, especially the electromagnetic environmental impact on the spatial signals of localizer in the case of large-angle incidence, is of great significance for ensuring flight safety and maximizing the development of airport space resources. The all-metal electromagnetic absorption structure proposed in this paper solves the multi-angle and multi-direction interference signal incidence situation faced by the localizer in the complex multi-obstacle environment, and can effectively eliminate the influence of multipath effect on the spatial signal of the localizer.