高速铁路典型地形通信电波传输模型研究
|
摘要
高速铁路系统的技术重点是通信电波的无线覆盖。以理论模型为基础,采用最小标准差估计法对460 MHz通信电波在高速铁路的典型地形条件下的传播进行建模。在高速铁路的试验段测量数据的基础上,对山地、城市、桥梁、路堑和平原等常见地形的距离损耗因数β和标准差ω进行统计,获得几种地形的电波传播模型,分析参数的不同,最终得到高速铁路完整的通信电波传播模型。
Wireless coverage of communication radio wave is a technical focal point for the high-speed railway system. Based on a theoretical model,modeling was completed for the propagation of 460 MHz radio wave over typical terrains of the high-speed railways in the method of minimum standard deviation estimation. On the basis of the data measured on an experimental section of the high-speed railway,statistics was made for distance loss coefficient β and standard deviation ω for common terrains like hilly area,city,bridge,railway cutting and plain to obtain their radio wave propagation models. The difference between parameters was analyzed. Finally,a complete radio wave propagation model was obtained for the high-speed railway.
Wireless coverage of communication radio wave is a technical focal point for the high-speed railway system. Based on a theoretical model,modeling was completed for the propagation of 460 MHz radio wave over typical terrains of the high-speed railways in the method of minimum standard deviation estimation. On the basis of the data measured on an experimental section of the high-speed railway,statistics was made for distance loss coefficient β and standard deviation ω for common terrains like hilly area,city,bridge,railway cutting and plain to obtain their radio wave propagation models. The difference between parameters was analyzed. Finally,a complete radio wave propagation model was obtained for the high-speed railway.
引文
[1]张哲,徐钧,蔺伟.高速铁路GSM-R系统电波传播场景分类与路径损耗指数的求解[J].铁道通信信号,2014,50(9):52-56.
[2]张哲,梁铁群,蔺伟.450 MHz频段电波传播路径损耗模型的研究[J].铁道通信信号,2017,53(6):38-41.
[3]范波勇,张敏.TD-LTE系统中影响容量因素的研究[J].通信技术,2014,47(7):775-778.
[4]严志明,张秀彬.气电混合供暖装置的优化与控制[J].建筑电气,2017,36(7):33-35.
[5] FERNANDEZ-SEGOVIA J A,LUNA-RAMIREI S,TORIL M,et al.Estimating cell capacity from network measurements in a multi-service LTE system[J]. IEEE Communications Letters,2015,19(3):431-434.
[6]盛骤,谢式千,潘承毅.概率论与数理统计[M].2版.北京:高等教育出版社,1989.
[7]鲁义轩,朱晨鸣.700 MHz频段组网之技术解读[J].通信世界,2016,23(3):47-48.
[8]张传达,赖益民,周裕翔,等.低频段FDD-LTE无线接入技术的分析探讨[J].通信与信息技术,2013,43(6):48-51.
[9] ZUO W M,MENG D Y,ZHANG L,et al. A generalized iterated shrinkage algorithm for non-convex sparse coding[C]//Proceedings of the 2013 IEEE International Conference on Computer Vision,Sydney,Australia:IEEE,2013,34:217.
[10] CANDLES E J,RECHT B. Simple bounds for recovering low-complexity models[J]. Mathematical Programming,2013,141(1):577.
[11]亢孟军.数字高程模型不规则四边形网建模方法研究[D].武汉:武汉大学,2011.
[12]闾国年,钱亚东,陈钟明.基于栅格数字高程模型提取特征地貌技术研究[J].地理学报,1998,53(6):563-570.
[13]李维能,方贤铨.地貌学[M].北京:地图出版社,1985.
[14]何宗宜.地图数据处理模型的原理与方法[M].武汉:武汉大学出版社,2004.
[15]徐泽水,达庆利.多属性决策的组合赋权方法研究[J].中国科学管理,2002,10(2):84-87.
[16]周缵.一个典型的嵌入式系统设计和实现[J].电子工程专辑,2005,3(3):3-12.
[17]张湘,肖建.嵌入式系统和嵌入式操作系统[J].自动化信息,2002,6(5):12-16.
[18]苏海龙,骆宗安,张殿华.基于LabVIEW RT的集散控制系统[J].仪表技术,2004,31(5):11-12.
[19] CULLAR D,ESTRIN D,STRVASTAVA M.Overview of sensor networks[J].IEEE Computer,2004,37(8):41.
[20] MADDEN S,FRANK LIN M J,HELLERSTEIN J M,et al.TAG:A tiny aggregation service for ad-hoc sensor networks[C]//The 5th Symp on Operating Systems Design and Implementation,Boston,MA,2002.
[2]张哲,梁铁群,蔺伟.450 MHz频段电波传播路径损耗模型的研究[J].铁道通信信号,2017,53(6):38-41.
[3]范波勇,张敏.TD-LTE系统中影响容量因素的研究[J].通信技术,2014,47(7):775-778.
[4]严志明,张秀彬.气电混合供暖装置的优化与控制[J].建筑电气,2017,36(7):33-35.
[5] FERNANDEZ-SEGOVIA J A,LUNA-RAMIREI S,TORIL M,et al.Estimating cell capacity from network measurements in a multi-service LTE system[J]. IEEE Communications Letters,2015,19(3):431-434.
[6]盛骤,谢式千,潘承毅.概率论与数理统计[M].2版.北京:高等教育出版社,1989.
[7]鲁义轩,朱晨鸣.700 MHz频段组网之技术解读[J].通信世界,2016,23(3):47-48.
[8]张传达,赖益民,周裕翔,等.低频段FDD-LTE无线接入技术的分析探讨[J].通信与信息技术,2013,43(6):48-51.
[9] ZUO W M,MENG D Y,ZHANG L,et al. A generalized iterated shrinkage algorithm for non-convex sparse coding[C]//Proceedings of the 2013 IEEE International Conference on Computer Vision,Sydney,Australia:IEEE,2013,34:217.
[10] CANDLES E J,RECHT B. Simple bounds for recovering low-complexity models[J]. Mathematical Programming,2013,141(1):577.
[11]亢孟军.数字高程模型不规则四边形网建模方法研究[D].武汉:武汉大学,2011.
[12]闾国年,钱亚东,陈钟明.基于栅格数字高程模型提取特征地貌技术研究[J].地理学报,1998,53(6):563-570.
[13]李维能,方贤铨.地貌学[M].北京:地图出版社,1985.
[14]何宗宜.地图数据处理模型的原理与方法[M].武汉:武汉大学出版社,2004.
[15]徐泽水,达庆利.多属性决策的组合赋权方法研究[J].中国科学管理,2002,10(2):84-87.
[16]周缵.一个典型的嵌入式系统设计和实现[J].电子工程专辑,2005,3(3):3-12.
[17]张湘,肖建.嵌入式系统和嵌入式操作系统[J].自动化信息,2002,6(5):12-16.
[18]苏海龙,骆宗安,张殿华.基于LabVIEW RT的集散控制系统[J].仪表技术,2004,31(5):11-12.
[19] CULLAR D,ESTRIN D,STRVASTAVA M.Overview of sensor networks[J].IEEE Computer,2004,37(8):41.
[20] MADDEN S,FRANK LIN M J,HELLERSTEIN J M,et al.TAG:A tiny aggregation service for ad-hoc sensor networks[C]//The 5th Symp on Operating Systems Design and Implementation,Boston,MA,2002.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |