Simulation and Analysis of Active Disturbance of Electrified Railway to Instrument Landing System

Abstract

With the increasing popularity of seamless transfer between high-speed rail and airport, more and more high-speed rail lines go directly to airport terminal buildings. According to article 62 of The People s Republic of China Radio Administration Regulations [1], in the construction of radio observatories, meteorological radar stations, satellite monitoring and control (navigation) stations, airports and other projects requiring special protection of the electromagnetic environment, the project construction units shall make electromagnetic compatibility analysis and demonstration of the site selection before determining the site of the project . Therefore, according to the instrument approach procedure, using the simulation software to model the electrified railway interference source and instrument landing system, the signal-to-interference ratio (signal energy to interference energy (such as frequency interference, multipath) and the sum ratio of additive noise energy) on flight procedure is simulated, and the influence of electrified railway on instrument landing system is analyzed ,which is of great significance to the safe operation of equipment and airports.