Analysis of the solution to the interference of subway communication signal

In view of the phenomenon that the 2.4GHz Metro communication system is interfered by many other irrelevant signals, through analysis and simulation, it is concluded that the factors such as vehicle speed, complex environment and base station location will make the signal-to-noise ratio of the Metro Communication System worse. In this paper, the rationality of the conjecture is proved by theoretical analysis, simulation of signal intensity distribution and signal-to-noise ratio rise. This paper analyzes the two solutions of reducing interference source and protecting sensitive source signal. On this basis, it puts forward the scheme of installing shielding network to solve the interference of Metro communication signal, and analyzes the feasibility of several solutions.