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系統識別號 U0002-3005200517074600
中文論文名稱 利用射線彈跳法建構之極寬頻室內通訊通道計算模型
英文論文名稱 Ultra-Wide Band Channel Calculation Model by Using SBR/Image Techniques for Indoor Communication
校院名稱 淡江大學
系所名稱(中) 電機工程學系碩士班
系所名稱(英) Department of Electrical Engineering
學年度 93
學期 2
出版年 94
研究生中文姓名 胡庭茂
研究生英文姓名 Ting-Mao Hu
學號 692350100
學位類別 碩士
語文別 中文
口試日期 2005-05-23
論文頁數 46頁
口試委員 指導教授-丘建青
委員-林丁丙
委員-余金郎
委員-李慶烈
委員-李揚漢
委員-丘建青
中文關鍵字 極寬頻  通道  頻率響應  脈衝響應  方均根延遲擴散 
英文關鍵字 Ultra-wide band  indoor communication  channel modeling  SBR/Image techniques  impulse response  multi-path effect  metallic furniture 
學科別分類 學科別應用科學電機及電子
中文摘要 本論文研究利用射線彈跳追蹤法去建構一個極寬頻(UWB)的室內通訊通道模型,並藉由此模型計算出通道的脈衝響應。本論文中的通道模型可以建構出任何位置的傳送與發射點在任何不同室內環境中的通道脈衝響應。利用射線彈跳追蹤法,每一條射線中皆加入了反射與繞射的效應,並且考慮了多路徑通道的效應,將包含時間與相位延遲的電流計算出來。由於物質的材質係數會受頻率的改變而有所不同,因此在極寬頻通訊中我們特別考慮了邊牆、障礙物等材質係數隨頻率改變的影響。
藉由此模型所計算出來多路徑通道的脈衝響應,我們可以研究金屬家具在室內通訊的多路徑環境中所造成的影響。之後我們將會利用此通道模型去深入研究金屬家具與障礙物在室內環境中,對極寬頻室內通訊的位元錯誤率以及均方根延遲擴散的影響。
在第四節的數值結果表示出金屬家具的存在與否對多路徑效應的影響。此外,當接收天線的位置越接近金屬家具,金屬家具所造成的多路徑效應越是明顯。
英文摘要 In this paper, we use ray tracing techniques and inverse Fourier transform to compute the impulse responses for ultra-wide band (UWB) indoor communication. First, the frequency responses of different indoor environments for any transmitter-receiver location are computed by shooting and bouncing ray/image (SBR/Image) techniques in UWB frequency ranges. Note that, the frequency dependence utilized in the structure on the indoor channel is accounted for in the channel calculation. Then, the impulse responses of channel is obtained by applying inverse Fourier transform to transform the frequency domain data into time domain. A realistic complex environment is simulated by our proposed method. By using the obtained impulse responses of these multi-path channels, the impact of metallic furniture to indoor multi-path environment is investigated. Numerical results have shown that the multi-path effect with metallic cabinets is more severe than that without metallic furniture. Moreover, it is also found that when the receiver is located near metallic furniture, the multi-path effect caused by the metallic furniture is severe.
論文目次 第一章 概論………………………………………………… P.01
1.1 研究背景 ………………………………………………… P.01
1.2 研究動機與目的 ………………………………………… P.03
1.3 研究流程 ………………………………………………… P.06
第二章 UWB通道計算模型 ………………………………… P.07
2.1 無線電波傳播通道分 …………………………………… P.07
2.2 通道計算模型分析 ……………………………………… P.09
2.1.1 利用射線追蹤法語弦波的迴旋計算出頻域響應 …… P.09
2.1.2 利用何米特法與反傅立葉轉換計算出時域響應 …… P.13
2.3 射線彈跳追蹤法程式流程分析 ………………………… P.14
第三章 數值計算結果 …………………………………… P.21
第四章 結論 ……………………………………………… P.34
參考文獻 ……………………………………………………… P.35
附錄 …………………………………………………………… P.38
圖2.1:求得通道脈衝響應的步驟。………………………………P.17
圖2.2:何米特程序的信號處理步驟。……………………………P.18
圖2.3:信號經過何米特程序處理後之結果。……………………P.19
圖2.4:SBR/Image程式流程圖。 …………………………………P.20
圖3.1:微波實驗室俯視圖,記錄脈衝響應的接收與發射天線位置。圖中Tx為發射天線位置,Rx為接收天線位置。…………P.25
圖3.2.1:Rx1在有鐵櫃影響下的UWB脈衝通道響應………………P.26
圖3.2.2:Rx1在無鐵櫃影響下的UWB脈衝通道響應………………P.27
圖3.3.1:Rx2在有鐵櫃影響下的UWB脈衝通道響應………………P.28
圖3.3.2:Rx2在無鐵櫃影響下的UWB脈衝通道響應………………P.29
圖3.4.1:Rx3在有鐵櫃影響下的UWB脈衝通道響應………………P.30
圖3.4.2:Rx3在無鐵櫃影響下的UWB脈衝通道響應………………P.31
圖3.5:微波實驗室俯視圖,記錄RMS delay spread統計特性的接收與發射天線位置。圖中Tx為發射天線位置,Rx為接收天線位。………………………………………………………P.32
圖3.6:紀錄微波實驗室中,L型鐵櫃存在與移除後的Rx1-Rx110的方均根延遲擴散的統計比較圖。…………………………P.33
表3.1:紀錄圖3.6中所有Rx的方均根延遲擴散時間與統計特性。…P.33
參考文獻 [1] A. H. Muquaible, “Characterization of ultra-wideband communication channels,” Ph.D. dissertation, Virginia Polytechnic Institute and State University, 2003.
[2] R. Cramer, R. Scholtz, and M. Win, “Evaluation of an ultra-wide-band propagation channel,” IEEE Trans Antennas Propagat AP-50 (2002), 561–570.
[3] J. Keignart and N. Daniele, “Subnanosecond UWB channel sounding in frequency and temporal domain,” IEEE Conf Ultra-Wideband Syst Technol, 2002, pp. 25–29.
[4] R. A. Scholtz, R.J.-M. Cramer, and M.Z. Win, “Evaluation of the propagation characteristics of ultra-wideband communication channels ,” IEEE Antennas Propagat Soc Int Symp 1998, pp. 626–630.
[5] R. C. Qiu, “A study of ultra-wideband wireless propagation channel and optimum UWB receiver design,” IEEE J Sel Areas Commun 20 (2002), 1628–1637.
[6] B. Uguen, E. Plouhinee, Y. Lostanlen, and G. Chassay, “A deterministic ultra-wideband channel modeling,” IEEE Conf Ultra-Wideband Syst Technol, 2002, pp. 1–5.

[7] Y. Zhang, “Ultra-Wide Bandwidth Channel Analysis In Time Domain Using 3-D Ray Tracing,” High Frequency Postgraduate Student Colloquium of IEEE, 2004 6-7, September 2004.
[8] S. Woo, H. Yang, M. Park, and B. Kang, “Phase-Included Simulation of UWB Channel,” IEICE Trans. Commun., vol. E88-B, March 2005.
[9] A. M. Attiya and A. Saffaai-Jazi, ”Simulation of Ultra-Wideband Indoor Propagation,” MICROWAVE AND OPTICAL TECHNOLOGY LETTERS , Vol. 42, No. 2, July 20 2004.
[10] H. Ling, R. Chou, and S. Lee, “Shooting and bouncing rays: Calculating the RCS of an arbitrarily shaped cavity,” IEEE Trans. Antennas Propagat., vol. 37, pp. 194–205, Feb. 1989.
[11] S. Y. Seidel and T. S. Rappaport, “Site-specific propagation prediction for wireless in-building personal communication system design,” IEEE Transactions on Vehicular Technol, vol. 43, pp. 879–891, Nov. 1994.
[12] G. Liang and H. L. Bertoni, “A new approach to 3-D ray tracing for propagation prediction in cities,” IEEE Trans. Antennas Propagat., vol. 46, pp. 853–863, June 1998.
[13] M. F. Iskander, and Z. Yun, “Propagation prediction models for wireless communication systems,” IEEE Trans. on Microwave Theory and Techniques, vol. 50, no. 3, pp. 662-673, March 2002.
[14] S. H. Chen and S. K. Jeng, “An SBR/Image approach for indoor radio propagation in a corridor,” IEICE Trans. Electron., vol. E78-C, pp. 1058-1062, Aug. 1995.
[15] S. H. Chen and S. K. Jeng, “SBR/Image approach for radio wave propagation in tunnels with and without traffic,” IEEE Trans. Veh. Technol., vol. 45, pp. 570-578, Aug. 1996.
[16] A. A. M. Saleh and R. A. Valenzuela, “A statistical model for indoor multipath propagation,” IEEE J. Select. Areas Commun., vol. 5, pp. 128-137, Feb. 1987.
[17] E. W. Kamen and B. S. Heck, FUNDAMENTALS OF SIGNALS AND SYSTEMS USING THE WEB AND MATLAB, Prentice-Hall, 2000.
[18] I. Oppermann, M. Hamalainen and J. Iinatti, UWB Theory and Applications, John Wiley & Sons, 2004.
[19] A. S. Jazi, S. M. Riad, A. Muqaibel, and A. Bayram, “Through-the-Wall Propagation and Material Characterization,” DARPA NETEX Program Report, November 18, 2002.
[20] T. S. Rappaport, Wireless Communications, New Jersey: Prentice Hall PTR, 2002.
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