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研究生:楊豐誠
研究生(外文):Feng-Cheng Yang
論文名稱:時變向量無線電通道脈衝響應模擬器之研究
論文名稱(外文):Development of Time-Varying Vector Radio Channel Impulse Response Simulator
指導教授:唐震寰唐震寰引用關係
指導教授(外文):Jenn-Hwan Tarng
學位類別:碩士
校院名稱:國立交通大學
系所名稱:電信工程系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
中文關鍵詞:時變向量無線電通道脈衝響應通道參數
外文關鍵詞:time-varying vector radio channel impulse responsechannel parameter
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本研究利用向量通道脈衝響應量測系統(RUSK Channel Sounder)獲取大、中及小型都會區以及郊區的時變向量無線電通道脈衝響應之實測數據,藉由統計方法分析量測數據探討各種傳播環境的通道參數特性,這些通道參數包含群集因子、接收路徑平均抵達率、時變參數、空間參數及接收路徑的振幅大小與相位。分析這些通道參數後便進一步建構通道參數模型,最後藉由Turin’s D-K通道脈衝響應模型、Hashemi’s時變通道脈衝響應模型並且加入通道空間(向量)效應,配合COST 259通道模型建構時變向量無線電通道脈衝響應模擬器。藉由統計實測數據與模擬器輸出的時變向量無線電通道脈衝響應之均方根延遲時間擴散參數(r.m.s delay spread),發現統計結果相近,驗證該通道模擬器為一適應性良好的時變向量無線電通道脈衝響應模擬器。

In this paper, an advanced vector channel sounder as employed to perform the time-varying vector radio channel impulse response measurement in urban and suburban environments. By analyzing measurement data, characteristics of radio channel parameters are studied, which includes the cluster factor, the mean arrival rate of multipath, the time-varying parameter, the spatial parameter and a series of amplitudes, phase shifted replicas of the transmitted signal. Then a time-varying vector radio channel impulse response simulator based on Turin’s D-K model is proposed, where concepts of Hashemi’s time-varying channel impulse response model and COST 259 channel model are applied. This simulator is validated by comparing the computed r.m.s. delay spread with the measured one and has been proven that which can accurately model the time-varying channel impulse response.

中文摘要………………………………………………………………i
英文摘要………………………………………………………………ii
誌謝……………………………………………………………………iii
目錄……………………………………………………………………iv
表目錄…………………………………………………………………vii
圖目錄…………………………………………………………………viii
第一章 緒論…………………………………………………………1
第二章 通道脈衝響應模型之介紹…………………………………4
2.1 Turin’s D-K通道脈衝響應模型之介紹…………….………4
2.2 Hashemi’s時變通道脈衝響應模型介紹…………………….7
2.3 時變向量通道脈衝響應模型………………………………...10
第三章 時變向量通道脈衝響應之量測……………………………17
3.1 量測系統與說明…………………………………….……...17
3.2 量測方法與步驟說明……….………………….…………….20
3.3 量測環境與路徑規劃………………………………….…….22
3.3.1 台北市區………..………………………………………22
3.3.2 中壢市區…………..……………………………………23
3.3.3 新竹市區………..………………………………………23
3.3.4 交通大學……..…………………………………………24
3.4 量測結果分析………………………….……………………...24
第四章 向量通道脈衝響應參數之擷取………………………………29
4.1 通道參數K及l之分析……………….………….……………29
4.1.1 大型都會區(台北市)………………………………….29
4.1.2 中小型都會區(中壢市、新竹市)…………………….32
4.1.3 郊區(交通大學光復校區)…………………….……….35
4.1.4 K與l對傳播環境之敏感度………………………..……37
4.2 通道脈衝響應之時變參數分析………………………………40
4.3 通道脈衝響應之空間(向量)參數分析……………………42
4.4 向量通道相位分析……………………………………………45
第五章 建構與驗證時變向量通道脈衝響應軟體模擬器……………56
5.1 建構時變向量通道脈衝響應軟體模擬器……………………56
5.1.1 時變向量通道脈衝響應軟體模擬器之架構圖………..56
5.1.2 建立不同傳播環境l模型………………………………60
5.1.3 建立時變參數模型……………………………………..66
5.1.4 建立振幅及相位模型…………………………………..68
5.2 驗證時變向量通道脈衝響應軟體模擬器……………………73
第六章 結論……………………………………………………………80
參考文獻………………………………………………………………..82

[1] G. L. Turin et al., ”A statistical model of urban multipath propagation,” IEEE Trans. on Vehicular Technology, vol. VT-21, pp. 1-9, February, 1972.
[2] H. Suzuki, “A statistical model for urban radio propagation,” IEEE Trans. on Commun., vol. COM-25, pp. 673-680, July, 1977.
[3] H. Hashemi, “Simulation of the urban radio propagation channel,” IEEE Trans. on Vehicular Technology, vol. VT-28, pp. 213-225, August, 1979
[4] R. B. Ertel, P. Cardieri, K. W. Sowerby, T. S. Rappaport, and J. H. Reed, “Overview of Spatial Channel Models for Antenna Array Communication Systems”, IEEE Communications Magazine, Vol.5, No.1, pp.10-22, Feb. 1998.
[5] T. S. Rappaport, Wireless Communication: Principles and Practice, Prentice-Hall, 1998.
[6] J. D. Parsons, The Mobile Radio Propagation Channel, John Wiley and Sons, 2000.
[7] Reiner S. Thomä, Dirk Hampicke, Andreas Richter, Gerd Sommerkorn, Axel Schneider, Uwe Trautwein, and Walter Wirnitzer, “Identification of Time-Variant Directional Mobile Radio Channels”, IEEE Trans. On Instrumentation And Measurement, Vol. 49, No. 2, pp.357-364, April 2000.
[8] 3GPP, “RF System Scenarios — TS 25.942”, December 1999, http://www.3gpp.org
[9] 3GPP, “Deployment aspects — TS 25.943”, June 2001, http://www.3gpp.org
[10] Y. Okumura, E. Ohmori, T. Kawano, and K. Fukuda, Field strength and its variability in VHF and UHF land mobile radio service, Rev. Electr. Commun. Lab., 16, 825-873, 1968
[11] COST 231 Final report, Digital Mobile Radio: COST 231 View on the Evolution Towards 3rd Generation Systems, Commission of the European Communities and SOST Telecommunications, Brussels, 1999
[12] W.C.Y. Lee, Estimate of local averae power of a mobile radio signal, IEEE Trans. on Vehicular Technology, 34(1), pp.22-27, 1985.
[13] J. Walfisch, and H.L.. Bertoni, A theoretical model of UHF propagation in urban environments, IEEE Trans. Ant. Prop., 36(12), pp.1788-1796, 1988.
[14] Klaus Ingemann Pedersen, Preben E. Mogensen, and Bernard H. Fleury, “A Stochastic Model of the Temporal and Azimuthal Dispersion Seen at the Base Station in Outdoor Propagation Environments”, IEEE Trans. on Vehicular Technology, vol. 49, No. 2, March, 2000.

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