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研究生:吳青原
研究生(外文):Ching-Yuan Wu
論文名稱:多載波差分相調變系統之傳輸延遲誤差估測
論文名稱(外文):Estimation of propagation delay offset in multi-carrier differential phase systems
指導教授:鐘嘉德鐘嘉德引用關係
指導教授(外文):Chir-Dir Chung
學位類別:碩士
校院名稱:國立中央大學
系所名稱:通訊工程研究所
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
論文頁數:63
中文關鍵詞:多載波差分相調變非同調偵測傳輸延遲最大相似估測誤差
外文關鍵詞:multicarrierdifferential phase modulationnon
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本篇論文針對多載波差分相調變系統中的傳輸延遲誤差(Propagation Delay Offset)問題提出估測法則,分別在已知及未知接收訊號時序的情況下。在本文中,我們估測多載波相位系統採用非同調偵測(Noncohernet Detection)時產生的傳輸延遲誤差,以數學分析估測的準確性,並以電腦驗証其正確性,無法分析的部份亦輔以電腦模擬。最後,比較本文中提到的二種估測法則之效能優劣。


The thesis presents how to estimate the propagation delay offset in multicarrier differential phase modulation systems, under the circumstance which the received signal’s symbol timing has and hasn’t been known. We analysis the estimation accuracy, and verify by computer simulation. Finally, we compared the performance of two approaches mentioned in this thesis


圖形列表 iii

第一章 緒論 1

1.1 何謂多載波系統………………………………………1
1.2 傳輸延遲誤差之緣由及對系統造成之影響……………7
1.3 使用的決策理論…………………………………………9
1.4 研究動機………………………………………………11

第二章 I-Q估測法則之傳輸延遲誤差估測 12

2.1 I-Q估測法則……………………………………………12
2.2 估測之精確分析……………………………………15
2.3 估測之近似分析………………………………………23
2.4 分析與模擬結果之比較和討論………………………31

第三章 D-M估測法則之傳輸延遲誤差估測 41

3.1 D-M估測法則…………………………………………41
3.2 估測期望值分析………………………………………43
3.2.1 傳送訊號為方形脈波……………………………………45
3.2.2 傳送訊號為餘弦脈波……………………………………49
3.3 模擬結果與討論………………………………………54
3.4 D-M估測法則與I-Q估測法則之比較………………60

第四章 結論 62

中英對照表 I

參考文獻 III


參考文獻[1] Char-Dir Chung and Fu-Chuan Hung, “Noncoherent maximum-likelihood block detection of orthogonal NFSK/LDPSK signals”, IEEE Trans. Veh. Technol., Vol. VT51, pp. 283 —292, Mar 2002[2] Char-Dir Chung, “Differential coherent detection technique for direct -sequence code acquisition in a Rayleigh fading Mobile channel”, IEEE Trans. on commun., vol. COM-43, pp. 1116-1126, Apr 1995.[3] J.G. Proakis, Digital Communication, 4rd ed. New York:McGraw-Hill, 2001.[4] S. Haykin, Communication Systems, 4rd ed. New York:WILEY, 2001.[5] L. Van Tree, Detection, Estimation, and Modulation Theory, New York: WILEY, 1968.[6] A. Papoulis, Probability, Random Variables, and Stochastic Processes, 3rd ed. New York:McGraw-Hill, 1991.[7] B. Sklar, Digital Communications, New Jersey:Prentice-Hill, 1988.[8] L. Litwin, “An introduction to multicarrier modulation,” IEEE Potentials, vol.19, pp36 —38, April-May 2000.[9] C.-D. Chung, "Orthogonally-multiplexed orthogonal amplitude modulation family," IEEE Trans. Commun., vol. COM-50, no. 3, pp. 415-428, Mar 2002.[10] C.R. Carter, “Survey of Synchronization Techniques for a TDMA Satellite-Switched System,” IEEE Trans. on commun., vol. COM-28, Aug. 1980.[11] J.Johansson and K.Jaldehag, “Precise time transfer using GPS carrier phase-based techniques,” IEEE Int. Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the , vol: 1, 1999.[12] G. Butt, M. Parks and B.G. Evans, “Measurements and Modelling of wireless channel for satellite mobile/personal communication systems,” Digital Satellite Commun., 1995., Tenth Inter. Conf. on, vol.1, pp. 106-114 1994 [13] Z. Ning and P.J. McLane, “Global synchronization of a FDMA/TDM processing satellite communication system,” Electrical and Computer Engineering, 1993. Conf. Canadian, vol.1, pp. 417-423 1993.[14] E.G. Strom, S. Parkvall, S.L. Miller, and B.E. Ottersten, “Sensitivity analysis of near-far resistant DS-CDMA receivers to propagation delay estimation errors,”. In Proc. IEEE Veh. Technol. Conf. pp. 757-761, 1994.[15] L. Wei and I. Korn, “Combined frequency and differential phase shift keying with non-coherent detection in a satellite mobile channel,” IEEE Trans. Veh. Technol., vol. VT-44, pp. 603-612, Aug. 1995.[16] W.C. Lindsey and M.K. Simon, Telecommunication Systems Engineering. Englewood Cliffs, N.J.: Prentice Hall, 1973.[17] D. Saha and T.G. Birdsall, “Quadrature-Quadrature phase shift keying,” IEEE Trans. Commun., vol. COM-37, pp. 437-448, May 1989.[18] S. Fleisher and S. Qu, “Quadrature frequency/phase modulation,” IEEE Trans. Commun., vol. COM-43, pp. 1513-1524, Feb./Mar./Apr. 1995.

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