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  • 學位論文

在台灣高速鐵路環境下通訊訊號改善之研究

Feasibility study of communication signal improvement in Taiwan high speed railway environment

指導教授 : 張進福

摘要


在台灣高速鐵路的行車環境下,由列車上設備及沿線基地台之間做整體性的設計,以涵蓋良好的訊號品質為目標,藉以達到列車上通訊品質的改善。文中將藉由訊號量測儀器,針對台灣高速鐵路沿線之通訊環境現況進行量測,將通訊不良的可能原因加以描述及定義,其次參考國外針對高速鐵路環境所做的研究經驗進行討論,建議列車上採以成本最低且最可行的中繼器搭配洩波同軸電纜的架構,作為列車上使用者與列車沿線周遭基地台之間的中繼站,以改善列車車廂所造成的訊號衰減,及高速移動的情況下環境造成的品質衰弱,將其套用至傳播路徑損耗模型並使用鏈路預算的概念,對沿線基地台配置提出最佳的設計方式,藉以強化列車上通訊訊號強度及品質,以使列車上使用者可穩定使用品質良好的語音服務及高速數據服務,此外依此設計基礎,同時也會針對相鄰基地台之間的換手設計及隧道情況做討論及建議,以使整體高速鐵路的環境下,能保有最佳的通訊環境。

並列摘要


In order to improve mobile communication coverage and quality on THSR (Taiwan High Speed Rail), a system design and integration between communication equipments on THSR and base stations alongside the high speed railway must be implemented. First, acquire current signal coverage holes, bad quality areas or other quality issues along the high speed railway using RSV (Radio Site Verification) instruments. Next, based on the RSV data and "Link Budget" concept, design a repeater and leakage cable hybrid feasible system that installed on railway carriage to compensate the signal path loss due to high speed movement and railway carriage. Finally, configurations and parameters of base stations alongside THSR must be modified and tuned for enhancing signal strength and quality in order to provide smooth circuit and packet switch service for subscribers.

並列關鍵字

THSR Repeater Link Budget Leakage cable Propagation Model

參考文獻


[5] F. Abrishamkar and J. Irvine, ”Comparison of Current Solutions for the Provision of Voice Services to Passengers on High Speed Trains,” IEEE, VTC 2000, vol.5, pp.2068-2075, Sep.2000.
[17] M. Uhlirz, Concept of a GSM-Based Communication System For High Speed Trains; Proceedings of the Vehicular Technology Conference, Stockholm, Jun. 8-10, 1994, vol. 2, Jun. 8, 1994, IEEE, pp. 1130-1134.
[24] Hata, M, 1980, “Empirical Formula for Propagation Loss in Land Mobile Radio Services,” IEEE Trans. Veh. Tech., 29, 317-325.
[25] Medeisis, A.; Kajackas, A., “On the use of the universal Okumura-Hata propagation prediction model in rural areas,” Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st , Volume: 3 , 2000 ,Page(s): 1815 -1818 vol.3.
[1] http://www.hsr.gov.tw/

被引用紀錄


易換三(2009)。台灣高鐵沿線行動通信基地台佈建策略及通訊品質改善之研究〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2009.10043

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