Modeling and optimization for balise coupling process in high speed railway

As key components of the train control system, balise and Balise Transmission Module (BTM) cooperate with each other and fulfill the ground-train information transmission to ensure the safety and reliability of train operation. In order to solve the problem of the coupling performance analysis of the balise, this paper sets up the coupling model of the balise system for the cause of formation of the induced voltage amplitude envelope(IVAE) during the coupling process, and finally proposes the optimization which could improve balise coupling performance by adjusting the spatial electromagnetic field distribution and changing the IVAE.