车地通信系统中功率转换模块的优化设计

Optimal Design of Power Conversion Module in Vehicle-ground Communication System

功率放大器作为通信系统的前端设备,已广泛应用与轨道交通领域,但由于其易受环境影响导致其产生通信误码、信号失真的问题,影响车地通信系统中数据的有效传递。针对上述问题,利用信号滤波原理进行理论分析,通过静态仿真和瞬态仿真完成车地通信系统中功率放大器的最优参数确认。经实验证明:该优化方案能够提高功率转换效率、提升通信信噪比,达到优化既有通信系统的目的,为日后的设备升级提供技术保证。

As the front-end equipment of the communication system,the power amplifier has been widely used in the field of rail transit.However,due to its susceptibility to environmental influences,it produces communication errors and signal distortion problems,which affect the effective data transmission in the vehicle-to-ground com-munication system.In view of the above problems,this design uses the principle of signal filtering for theoretical analysis,and confirms the optimal parameters of the power amplifier in the vehicle-to-ground communication sys-tem through static simulation and transient simulation.Experiments demonstrated that the optimization scheme can improve the power conversion efficiency,improve the communication signal-to-noise ratio,achieve the goal of optimizing the existing communication system,and provide technical guarantee for future equipment upgrades.