无线调车机车信号和监控系统场强覆盖的分析与设计

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1、兰州交通大学工程硕士学位论文theoreticalanalysisandlinkcalculation,thethreeschemesareanalyzedandcomparedinstructions.CombinedwiththestationenvironmentandequipmentconditionoftheDazhouRailwayStation,thisthesishasconductedapreliminarydesignofthesystemengineeringsolutionsandpr

2、ogramsfeasibilitystudies.Fromthecommunicationquality,constructionandmaintenance,andprojectinvestment,thethesismakeacomparisonandanalysisofthetwoschemes:thegroundantennaadjustmentandtheadditionalrepeater.Accordingtothereviewcommentsofpreliminarydesignsolution

3、oftheChengduRailwayAdministrationandthelong-termdevelopmentprogramofDazhouRailwayStation,wehaveoptimizedandimprovedthescheme,andfinallyformedaconstructionprogram.Forinstallationandpostrepairandmaintenance,groundhosts,electricalservicesmaintenanceterminal,veh

4、icleserviceterminals,automotiveandgroundantennashostcommonsymptomsmayencounter,thethesisgivesjudgmentandtreatmentmethod.KeyWords:WirelessShuntingLocomotiveSignalingandMonitoringSystem;MicrowaveCommunication;FieldStrengthCoverage-III-万方数据无线调车机车信号和监控系统场强覆盖的研究与

5、设计目录摘要.....................................................................................................................................IAbstract..............................................................................................................

6、........................II1绪论.........................................................................................................................................11.1调车监控系统的发展现状.............................................................................

7、.............11.2调车监控系统的重要性..............................................................................................11.3无线通信的特点..........................................................................................................21.3.1无线电波传播路径的复杂性..

8、.........................................................................21.3.2干扰和噪声严重...............................................................................................21.3.3移动环境中的适