通信学报
通信學報
통신학보
JOURNAL OF CHINA INSTITUTE OF COMMUNICATIONS
2014年
1期
115-127
,共13页
刘留%陶成%陈后金%周涛%孙溶辰%邱佳慧
劉留%陶成%陳後金%週濤%孫溶辰%邱佳慧
류류%도성%진후금%주도%손용신%구가혜
高速铁路%无线信道%信道测量%信道建模
高速鐵路%無線信道%信道測量%信道建模
고속철로%무선신도%신도측량%신도건모
high-speed railway%wireless channel%channel measurement%channel characterization
归纳了国内外已开展的高速铁路无线信道测量活动,总结了国际标准化组织关于高速铁路无线信道的相关提案和标准化模型,分类讨论了高速铁路在不同条件下无线信道大尺度、小尺度等方面的衰落特性,得出高速铁路无线信道特征参数受传播环境、位置等因素影响较大;根据高速铁路无线信道实际测量的问题,详细分析了基于理论方法的高速铁路无线信道建模类型,最后提出了未来的研究方向和重点。
歸納瞭國內外已開展的高速鐵路無線信道測量活動,總結瞭國際標準化組織關于高速鐵路無線信道的相關提案和標準化模型,分類討論瞭高速鐵路在不同條件下無線信道大呎度、小呎度等方麵的衰落特性,得齣高速鐵路無線信道特徵參數受傳播環境、位置等因素影響較大;根據高速鐵路無線信道實際測量的問題,詳細分析瞭基于理論方法的高速鐵路無線信道建模類型,最後提齣瞭未來的研究方嚮和重點。
귀납료국내외이개전적고속철로무선신도측량활동,총결료국제표준화조직관우고속철로무선신도적상관제안화표준화모형,분류토론료고속철로재불동조건하무선신도대척도、소척도등방면적쇠락특성,득출고속철로무선신도특정삼수수전파배경、위치등인소영향교대;근거고속철로무선신도실제측량적문제,상세분석료기우이론방법적고속철로무선신도건모류형,최후제출료미래적연구방향화중점。
The conducted measurement campaigns, domestic and overseas, were presented. Meanwhile, proposals and standard channel models from the international standardization organization were reviewed. The large-scale and small-scale fading characteristics of High-Speed Railway wireless channels were adequately compared, and it is found that the channel parameters depend on the propagation environment and the distance between the transmitter and receiver. Moreover, due to difficulties encountered in realistic channel measurements, theoretical channel characterization methods were analyzed. Finally, open research issues were presented.