基于FDMA(频分多址)技术的空口位置信号模拟装置  

Air Interface Position Signal Simulation Device Based on FDMA Technology

作　　者：查伟 欧冬秀[2] ZHA Wei;OU Dongxiu(CASCO Signal Co.,Ltd.,200071,Shanghai,China)

机构地区：[1]卡斯柯信号有限公司,上海200071 [2]同济大学交通运输工程学院,上海200331

出　　处：《城市轨道交通研究》2023年第12期271-274,279,共5页Urban Mass Transit

摘　　要：目的:为模拟信标与车载信标天线间空口位置信号发生及传输特性,提出了基于FDMA(频分多址)技术的新型空口位置信号模拟装置。方法:介绍了基于FDMA技术的信号传输模式、模拟原理;阐述了基于FDMA技术的新型空口位置信号模拟装置组成及各组成部件的功能。结果及结论:该模拟装置可用于轨道交通列车控制系统空口位置信号模拟。该模拟装置继承了FDMA多路多频信号承载的特性,信号频谱范围广,具备全双工上下行信号同步交互的会话机制,在保证多路多频信号高保真度和高同步性的同时,可支持对各路频分多址信号的增益和衰减系数进行灵活处理,可广泛地匹配轨道交通列车控制系统多样式的FDMA空口位置信号接口。Objective:A new air interface position signal simulation device based on FDMA(frequency division multiple access)technology is proposed to simulate the occurrence and transmission characteristics of air interface position signals between beacons and on-board beacon antennas.Method:The signal transmission mode and simulation principles based on FDMA technology are introduced.The composition and functions of each component of the new air interface position signal simulation device based on FDMA technology are elucidated.Result&Conclusion:The simulation device is applicable for simulating air interface position signals in rail transit train control system.Inheriting the characteristics of FDMA,which supports multiple frequencies and simultaneous bidirectional signal synchronization,the simulation device also features a wide signal spectrum range,and full-duplex synchronous interactive communication mechanism for uplink and downlink signals.While ensuring high fidelity and high synchronization of multi-pathway and multi-frequency signals,it also allows flexible processing of the gain and attenuation coefficients for various pathway FDMA signals,making it versatile for matching diverse FDMA air interface signal interfaces in rail transit train control systems.

关 键 词：轨道交通 列车控制系统 空口位置信号 模拟装置 

分 类 号：U285.4[交通运输工程—交通信息工程及控制]