铁路通信信号工程技术2025，Vol.22Issue(5)：42-49,8.DOI:10.3969/j.issn.1673-4440.2025.05.007
基于射线跟踪仿真的隧道内5G-R漏缆挂设方案研究
Research on 5G-R Leaky Cable Hanging Scheme in Tunnel Based on Ray Tracing Simulation
摘要
Abstract
This paper analyzes the network structure of 5G-R systems in tunnels,the 2T2R and 4T4R networking schemes of leaky cables,and the installation location of leaky cables in tunnels,compares the characteristics of 1-5/8 inch radial leaky cables and 5/4 inch low-loss radial leaky cables used for 2 100 MHz,and proposes the RRU spacing in tunnels according to the link budget.On this basis,3D modelling is established for the single-track single-bore and double-track single-bore railway tunnels and multiple unit trains,and the ray tracing principle is adopted to simulate and verify the in-tunnel field strengths of 5G-R networks with different networking schemes,different hanging heights and different types of leakage cables.Thus,this paper puts forward a suggested scheme to provide reference for the subsequent application in 5G-R projects.关键词
5G-R/射线跟踪/单线单洞隧道/双线单洞/MIMO/漏缆Key words
5G-R/ray tracing/single-track single-bore tunnel/double-track single-bore tunnel/MIMO/leaky cable分类
交通运输引用本文复制引用
杨琪,冯敬然,吴雪峰,葛伟涛,李珉璇..基于射线跟踪仿真的隧道内5G-R漏缆挂设方案研究[J].铁路通信信号工程技术,2025,22(5):42-49,8.基金项目
中国铁路设计集团有限公司重点课题项目(2022A02512011) （2022A02512011）
