The influence simulation analysis of the sensitive area of the instrument landing system's localizer on the position of the aircraft take-off waiting line

With the increasing capacity of airports, the phenomenon of aircrafts queuing for takeoff is becoming more and more common. For category II/III instrument landing operations, there are strict regulations for the protection areas (including critical and sensitive areas) around the runway. If the aircrafts waiting to take off at the runway entrance which is in the localizer’s sensitive area, it may affect the signal of the localizer, thus affecting flight safety. According to MH/T 4003.1-2014 “the regulation of civil aviation communication, navigation and surveillance equipment (stations) siting Part 1: Navigation”, the sensitive area is maximum at the entrance of the runway, if the take-off waiting line is established on the basis of the range, it may reduce the operation efficiency of the airport. Therefore, collect the buildings data around the runway by using the satellite remote sensing image acquisition technology, and establish the take-off waiting line for the aircrafts by analyzing, modelling, simulating according to the terrain, buildings, runways and the basic parameters of the localizers of the different airports, then analyze the queuing capacity behind the take-off waiting line, which may improve the efficiency of the airports, and have a high engineering application value.