簡易檢索 / 詳目顯示
| 研究生： |
林福居 Fu-Ju Lin |
|---|---|
| 論文名稱： |
PN碼對多重路徑的估測 |
| 指導教授： |
賀嘉律
Chia-Lu Ho |
| 口試委員: | |
| 學位類別： |
碩士 Master |
| 系所名稱： |
資訊電機學院 - 電機工程學系 Department of Electrical Engineering |
| 畢業學年度： | 88 |
| 語文別： | 中文 |
| 論文頁數： | 54 |
| 中文關鍵詞： | 多重路徑 |
| 相關次數： | 點閱：6 下載：0 |
| 分享至: |
| 查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
在此篇論文中，我們將利用以PN碼為基礎的最大適然性通道估算器（Maximum likelihood channel estimator）來估算出在平坦瑞雷衰減通道（flat Rayleigh fading channel）中多重路徑的位元，並且由於PN碼在直接序列分碼多重（DS-CDMA）的系統，有抗干擾的功用，故在以PN碼為基礎的通道估算器中對於PN碼也需特別選取。最後以look-up table來改良上述通道估算器對於雜訊的抗干擾性。
1] Jurg Ruprecht , "Maximum-Likelihood Estimation of Multipath Channels " , ETH , May 31, 1989
[1] F.Neeser ,M. Hufschmid, " Maximum-Likelihood Demodulation and Multipath Channel Estimation in a Direct-Sequence spread spectrum system", ETH , den 31. Januar 1990
[1] Seiichi Sampei , "Applications of Digital Wireless Technologies to Global Wireless Communications", Prentice Hall , 1997
[1] QUALCOMM , "The CDMA Network Engineering Handbook" , vol. 1, March 1,1993
[1] Madrid, " Wideband Direct-Sequence CDMA (WCDMA) Evaluation Document (3.0), ETSI SMG Meeting no 24, dec. 1997
[6] Urbashi Mitra , "Comparison of Maximum-Likelihood-Based Detection for Two Multirate Access Schemes for CDMA Signals" , IEEE trans. On Comm. ,vol. 47 ,pp. 64-79 , Jan. 1999
[7] Costas N. Georghiades, "Sequence Estimation in the Presence of Random Parameters Via the EM Algorithm" , IEEE trans. On comm. , vol.45 ,pp.300-307,MARCH 1997
[8] M. Zeng,A.Annamalai,and Vijay K.Bhargava,"Recent Advances in Cellular Wireless Communications" , IEEE comm. Magazine, pp.128-138 , Sep. 1999
[8] M. Zeng,A.Annamalai,and Vijay K.Bhargava,"Recent Advances in Cellular Wireless Communications" , IEEE comm. Magazine, pp.128-138 , Sep. 1999
[10] Li-Chung Chu," Analysis of MUSIC-based Delay Estimators for Direct-Sequence Code-Division Multiple-Access System", IEEE trans. On comm. ,vol. 47 ,pp. 133-138, January 1999
[11] Rodger E. Ziemer , Roger L. Peterson," Introduction to Digital Communication" , Macmillan, September 1991
[12] TR 45 , " Mobile Station-Base Station Compatibility Standard for Dual-Mode Wideband Spread Spectrum Cellular System" , March 1993
