English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 78852/78852 (100%)
造訪人次 : 35041682      線上人數 : 505
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋


    請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/92328


    題名: DVB-S2訊號符碼時間同步演算法之研究與硬體實現;Implementation of DVB-S2 Symbol Timing Synchronization Algorithm
    作者: 徐巧庭;Hsu, Chiao-Ting
    貢獻者: 通訊工程學系
    關鍵詞: 第二代數位衛星廣播;Gardner時間錯誤檢測器;符碼時間同步器;數位訊號處理器;DVB-S2
    日期: 2023-07-25
    上傳時間: 2023-10-04 15:26:36 (UTC+8)
    出版者: 國立中央大學
    摘要: 隨著數位衛星通訊技術的快速發展下,高資料率通訊技術在衛星通訊領域成為熱門的研究課題與技術發展方向。衛星通訊系統已廣泛應用於數位衛星電視和數據的傳輸標準等領域。DVB-S2標準提供高的頻譜效率和強大的錯誤修正能力,整體系統設計在低訊雜比(SNR)的環境下仍然能運作,以適應不同傳輸環境的應用。
    本論文主要研究DVB-S2接收端之符碼時間同步問題,評估性能以實現硬體設計。其中,針對盲蔽式時間同步方法進行探討,此方法不需要決策數據和pilot訊號,也不需要先做載波同步,就能回復符碼訊號。優點是能夠保持頻譜利用率,缺點是收斂數度較慢。最後,為滿足高通量的需求,提出了平行化訊號處理之架構,其中包括高通量的匹配濾波器和高通量的符碼時間同步器。;With the rapid development of digital satellite communication technology, high data rate communication has become a popular topic and technological direction in the satellite communication. Satellite communication systems have been widely used in areas such as digital satellite television and data transmission standards. The DVB-S2 standard provides high spectrum efficiency and powerful error correction capabilities, allowing the overall system design to operate effectively in low signal-to-noise ratio (SNR) environments, thus adapting to various transmission environments.
    This thesis primarily focuses on the study of the symbol timing synchronization problem in the DVB-S2 receiver, with the aim of evaluating its performance for hardware implementation. In particular, the thesis explores blind timing synchronization methods, which do not require decision data or pilot signals, and do not necessitate carrier synchronization prior to recovering symbol signals. The advantage of this approach is its ability to maintain spectrum efficiency, while its drawback is slower convergence. Lastly, to meet the requirements of high throughput, an architecture for parallel signal processing is proposed, incorporating high-throughput matched filters and high-throughput symbol timing synchronizers.
    顯示於類別:[通訊工程研究所] 博碩士論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    index.html0KbHTML45檢視/開啟


    在NCUIR中所有的資料項目都受到原著作權保護.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 隱私權政策聲明