杨俊，石磊，姚博，等.60GHz与300GHz频段航天器舱内通信信道特性[J].电波科学学报，2023，38（1）：79-86.DOI:10.12265/j.cjors.2022146YANGJ,SHIL,YAOB,etal.Channelcharacterizationforspacecraftcapsulecommunicationat60GHzand300GHz[J].Chinesejournalofradioscience，2023，38（1）：79-86.（inChinese）.DOI:10.12265/j.cjors.202214660GHz与300GHz频段航天器舱内通信信道特性杨俊石磊*姚博刘彦斐（西安电子科技大学空间科学与技术学院,西安710126）摘要太赫兹(THz)技术有望在航天器舱体轻质化和舱内高容量传输需求方面发挥重要作用.本文构建了典型航天器舱内毫米波60GHz与太赫兹300GHz频段信道三维仿真模型，基于射线追踪法获取了两种典型发射机部署位置下的无线信道特性，提取并分析了路径损耗指数、阴影衰落因子、莱斯K因子、均方根时延扩展和角度扩展等关键信道参数，研究了发射机的部署位置对特定频段舱内信道的影响.结果表明：相同环境下，频率越高、路径损耗与莱斯K因子越大而时延扩展越小；相同频率下，发射机部署于舱内角落的信道特性优于部署于舱内上壁中央.本文所研究的无线信道特性将为未来复杂舱内环境下的太赫兹通信系统设计和部署提供启示.关键词航天器；舱体模型；太赫兹通信；射线追踪(RT)；信道特征中图分类号V242.1文献标志码A文章编号1005-0388（2023）01-0079-08DOI10.12265/j.cjors.2022146Channelcharacterizationforspacecraftcapsulecommunicationat60GHzand300GHzYANGJunSHILei*YAOBoLIUYanfei（SchoolofAerospaceScienceandTechnologyofXidianUniversity,Xi’an710126,China）AbstractTerahertz(THz)technologyisanticipatedtobecrucialtospacecraftcapsuleweightreductionandtherequirementforhigh-capacitytransmissioninsidethecapsule.Inthemillimeter-wave60GHzandterahertz300GHzbands,thetypicalspacecraftcabinchannelismodelledinthreedimensionsinthisarticle.Usingtheray-tracingtechnique,theradiochannelcharacteristicsofthedeploymentplacesofthetworepresentativetransmittersaredetermined.Itwaslookedintohowthechannelinaparticularfrequencybandcabinwouldchangedependingonwherethetransmitterwouldbedeployed.Theresultsdemonstratedthat,inthesameenvironment,thehigherthefrequencyis,thehigherthepathlossandtheRicefactorKareandthelowerthedelayexpansionis.Atthesamefrequency,thec...
