无线信道建模在交通隧道环境中的研究

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中图分类号：TN919.23 文献标志码：A文章编号：1003-3114（2025）06-1272-07

Abstract：Insatelitenavigationandcommunicationsystems，theuniquestructureofatunnelmakes thesignalpropagationsignificantlydierentfroheoennviront.Tegometricspematerial，andtrfactosofll-talstlshelluelsiilwas androadshavediferentefectsonwirelesschannelmodeling.Thispapersystematicallsummarizesandanalyzesthewirelesschanel modelingtechniquesinhig-spdrailwayandoadunnels，includingchannelcharacteristics，propagationmodelsandmodelingmeth ods.Inparticular，channelmodelingofroad tunnelsceneisanalyzedidetail，including non-stationaryandomgeometricchael model.TheMultiple-InputMultiple-Output（MIMO）channelintunelscenarioissimulatedandanalyzed.Therelationshipbetween chanelcapacityand Signal toNoiseRatio（SNR）underdiferentnumbersofantenasisgiven，aswellasthechannelfrequncresponseandtheempiricaldistributionofchanelcondtionnumberundermassiveMIMOcondions，showing thepropagationcharacteristics of signals in tunnels with rich scatterers.

Keywords：channel modeling; satellite communication system; road tunnel; MIMO

0 引言

近年来，随着交通基础设施的迅猛发展，隧道因其卓越的结构强度和耐久性，在现代交通网络中愈加重要。（剩余11196字）