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研究生:陳奕涵
研究生(外文):I-Han Chen
論文名稱:具有快速改變載波相位之籬柵編碼MPSK的非同調解碼
論文名稱(外文):Noncoherent Decoding of Trellis Coded MPSK in the Presence of Rapidly Changing Carrier Phase
指導教授:魏瑞益
指導教授(外文):Ruey-Yi Wei
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:70
中文關鍵詞:快速改變的相移差分編碼非同調籬柵編碼調變
外文關鍵詞:NTCMdifferential encodingrapidly changing carrier phase
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不必用到差分編碼的非同調籬柵編碼調變在1996年被提出。非同調籬柵編碼調變通常用在有固定載波相位的AWGN通道中。然而,存在快速改變載波相位時,非同調籬柵編碼調變的錯誤效能並不理想。
本論文主要是考慮非同調籬柵編碼調變在這種快速改變相移的通道中的解碼。我們提出幾種解碼演算法,並以電腦模擬來顯示其錯誤效能的改進。


Noncoherent trellis coded modulation(NTCM), for which differential encoding is not used, was proposed in 1996. The channel considered by NTCM is AWGN channels with constant carrier phase. However, if there exists rapidly changing carrier phase, the error performance of NTCM is unsatisfactory.
In this thesis, we investigate the decoding of NTCM in the presence of rapidly changing carrier phase. Several decoding algorithms are proposed. The improvement of error performance are verified by computer simulations.


目錄

第一章 緒論 1
1.1 籬柵編碼調變簡介……………………………..……..…1
1.2 非同調籬柵編碼調變簡介…………………………………2
1.3 隨時間快速改變相位通道簡介……………………………3
1.4 論文章節安排………………………………………………3

第二章 無編碼DPSK的檢測 5
2.1通道模型…………………………………………………….5
2.2文獻【6】的檢測方法………………………………………7
2.3其他檢測方法………………………………………………11

第三章 非同調籬柵編碼調變與其在快速相移下
的模擬 17
3.1非同調編碼調變的解碼計量及演算法則…………………17
3.2在快速改變相移通道下之模擬……………………………22
3.3使用估測相移之非同調解碼………………………………31

第四章 非同調籬柵編碼調變在快速相移下之解碼
演算法 34
4.1估測相移的方法……………………………………………34
4.2記錄先前選擇的相移………………………………………35
4.3選擇相移組合………………………………………………40
4.4將狀態擴充結合相移的方法………………………………47

第五章 結論 57

中英對照表 i
參考文獻 iii


【1】G. Ungerboeck, ”Trellis-coded modulation with redundant signal sets. Part I: Introduction,” IEEE Commun. Mag., vol. 25, pp. 5-12, Feb. 1987【2】G. Ungerboeck, ”Trellis-coded modulation with redundant signal sets. Part II: State of the art,” IEEE Commun. Mag., vol. 25, pp. 12-22, Feb. 1987【3】G. Ungerboeck, ”Channel coding with multilevel/phase signals,” IEEE Trans. Information Theory., vol. IT-28, pp. 55-67, Jan. 1982【4】D. Raphaeli, “Noncoherent coded modulation,“ IEEE Trans. Commun., vol. 44, pp. 172-183, Feb. 1996【5】G. Colavolpe and R. Raheli, ”Non-coherent sequence detection of M-ary PSK,” in Proc. IEEE Int. Conf. Communications (ICC’97), pp.21-25 , June 1997【6】C.R. Nassar and M.R. Soleymani, “Data Detection of MPSK in the Presence of Rapidly Changing Carrier Phase,“ IEEE Transactions On Vehicular Technology, Aug. 1996【7】H. Leib and S. Pasupathy, ”The phase of a vector perturbed by Gaussian noise and differentially coherent receivers,” IEEE Trans. Inform. Theory, vol.34, pp.1491-1501, July 1993【8】F. Edbauer, ”Bit error rate of binary and quaternary DPSK signals with multiple differential feedback detection,” IEEE Trans. Commun., vol. 40, pp.457-460, March 1992【9】F. Adachi and M. Sawahashi, ”Decision feedback multiple-symbol differential detection for M-ary DPSK,” Electron. Lett., vol. 29, pp.1385-1387, July 1993【10】C.R. Nassar and M.R. Soleymani, ”Data detection of MPSK in the presence of unknown carrier phase at low complexity,” Electron. Lett., vol. 31, pp.945-947, June 1995【11】D. Divsalar and M. K. Simon, “Multiple-symbol differential detection of MPSK,” IEEE Trans. Commun., vol. 38, pp. 300-308, March 1990【12】D. Raphaeli, “Decoding algorithm for noncoherent trellis coded modulation,“ IEEE Trans. Commun., vol. 44, pp. 312-323, March 1996【13】G. Colavolpe and R. Raheli, “Noncoherent sequence detection,“ IEEE Trans. Commun., vol. 47, pp. 1376-1385, Sept. 1999【14】A. Duel-Hallen and C. Heegard, ”Delayed decision-feedback sequence estimation,” IEEE Trans. Commun., pp. 428-436, May 1989【15】P. Y. Kam, K. Y. Seek, T. T. Tjhung, and P. Sinha, “Error probability of 2DPSK with phase noise,” IEEE Trans. Commun., vol. 42, pp. 2366-2369, July 1994.

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