| 姓名 |
許俊卿(Chun-Chiung Hsu)
查詢紙本館藏 |
畢業系所 |
通訊工程學系 |
| 論文名稱 |
LTE 系統利用ZC序列做同步之研究
(Study of LTE system using ZC sequences for synchronization)
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| 相關論文 | |
| 檔案 |
 [Endnote RIS 格式]
[Bibtex 格式]
 [相關文章]  [文章引用]  [完整記錄]  [館藏目錄]  至系統瀏覽論文 ( 永不開放)
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| 摘要(中) |
因為無線通訊的訊號，在經過外在通道環境後，常會發生一些相位偏差，或物體在移動的都普勒效應等等造成頻率偏移，也有可能是發送的子載波本身也有頻率誤差，這些誤差會成解碼實訊號難以重建。
在此研究中，使用真實LTE(Long Term Evolution)的PDSCH (Physical Downlink Shared Channel)訊號錄製成數位檔案，再用C++程式軟體解碼，使用CP來做CFO補償，並以LTE規格中的PSS(主同調訊號)的ZC(Zadoff-Chu)序列來做頻率和相位同調修正。實作過程是以MATLAB軟體模擬ZC序列的各種性質，然後再用C++解真實訊號存成的數位檔案。
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| 摘要(英) |
Because wireless signals in the channel through the external environment, often will be some phase error, or objects moving in Governor frequency offset caused by Doppler effect, etc., may also be sent to sub-carrier frequency itself has errors, these errors will become difficult to decode the real signal reconstruction.
In this study, using real-LTE (Long Term Evolution) of PDSCH (Physical Downlink Shared Channel) signal is recorded as a digital file, then C + + programming software decoding, using the CP to do the CFO compensation, and LTE specifications in the PSS (the main coherent signal) of ZC (Zadoff-Chu) sequences to do the correct frequency and phase coherent. Implementation process is based on MATLAB software simulation ZC sequence of the various properties, and then use the C + + solution of the real signal is stored as digital files.
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| 關鍵字(中) |
★ 同調 |
關鍵字(英) |
★ LTE ZC |
| 論文目次 |
摘 要 I
Abstract V
誌 謝 VI
List VII
Figures List IX
Chapter 1. 緒論 1
1-1 背景 1
1-2 動機 2
Chapter 2. Zadoff-Chu and LTE 3
2-1 Zadoff-Chu序列 3
2-1.1 ZC 公式 3
2-1.2 ZC 相關性 4
2-1.3 頻域的ZC Sequence 6
2-2 Long Term Evolution 10
2-2.1 OFDM 12
2-2.2 SC-FDMA 14
Chapter 3. LTE的ZC搜尋 16
3-1 Poly Phase By FIR Filter 16
3-2 CP搜尋 19
3-3 Carrier Frequency Offset (CFO) 22
3-4 PDSCH ZC搜尋 24
Chapter 4. 同調 30
4-1 相位同調 30
4-2 頻率同調 32
Chapter 5. 結論 39
參考文獻(References) 40
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| 參考文獻 |
[1] Mohammad M. Mansour,“Optimized Architecture for Computing Zadoff-Chu Sequences with Application to LTE” American University of Beirut Beirut, Lebanon Global Telecommunications Conference, 2009. GLOBECOM 2009. IEEE pages 1~6.
[2] B.M. Popovic, “Efficient DFT of Zadoff-Chu sequences” ELECTRONICS LETTERS 1st April 2010 Vol. 46 No. 7.
[3] S. Beyme and C. Leung ,“Efficient computation of DFT of Zadoff-Chu sequences”ELECTRONICS LETTERS 23rd April 2009 Vol. 45 No. 9.
[4] 趙鐵 愛立信（中國）通信有限公司,“LTE 空中介面實體層過程淺析”2010 .
[5] Gunnar Fock, and Heinrich ,“Optimum Receiver Design for Wireless Broad-Band Systems Using OFDM Part I” Michael Speth Communications, IEEE Nov 1999 pages 1668~1677.
[6] Michael Speth, Stefan Fechtel,“Optimum Receiver Design for OFDM-Based Broadband Transmission-Part II: A Case Study”Communications, IEEE Apr 2001 pages 571~578.
[7] Roberto Rimini ,“Technical Overview of 3GPP LTE” May 18, 2008 IEEE Hyung G. Myung (hgmyung@ieee.org).
[8] 3GPP,”Technical Specification (Release 8)” TS 36.211 V8.9.0 (2009-12).
[9] Yingming Tsai and Guodong Zhang InterDigital ,“Time and Frequency Synchronization for 3GPP Long Term Evolution Systems” 2007 pages 5.
[10] Tang Yan-bo,“Symbol synchronization Algorithm based on Pseudo- superimposed Zadoff-Chu in Advanced-LTE”2009 July IEEE.
[11] Roberto Rimini, Jun Ma“A Robust Frequency Tracking Loop at the eNodeB for LTE Uplink”2008. ISSSTA '08. IEEE 10th International Symposium on Spread Spectrum Techniques and Applications 25-28 Aug, 2008 pages 97~102 Location Bologna, Italy.
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| 指導教授 |
賀嘉律(Alu Ho)
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審核日期 |
2011-7-27 |
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