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研究生: 周明宗
Ming-Tsung Chou
論文名稱: 循環字首及補零正交分頻多工系統在時序同步上之效能比較
The Performance Comparison of CP-OFDM and ZP-OFDM on Timing Synchronization
指導教授: 魏瑞益
Ruey-Yi Wei
鐘嘉德
Char-Dir Chung
口試委員:
學位類別: 碩士
Master
系所名稱: 資訊電機學院 - 通訊工程學系
Department of Communication Engineering
畢業學年度: 94
語文別: 中文
論文頁數: 62
中文關鍵詞: 時間偏移補零字首正交分頻多工循環字首正交分頻多工時序同步
外文關鍵詞: Time, CP-OFDM, ZP-OFDM, Timing Synchronization
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  • 本論文將針對循環字首正交分頻多工(Cyclic Prefix-OFDM)與補零正交分頻多工(Zero Padding-OFDM)系統,在時序同步(Time Synchronization)下的問題探討;由於時序偏移將造成符元間干擾(ISI),影響系統效能;我們將選用4種演算法估測時序偏移量,並針對CP-OFDM與ZP-OFDM的效能來比較。


    The thesis takes a discussion on timing synchronization in cyclic-prefix Orthogonal Frequency Division Multiple (CP-OFDM) and Zero-padding Orthogonal Frequency Division Multiple(ZP-OFDM) systems.Time offset causes initer symbol interference(ISI) such that performance of the system attenuates.We will estimate time offset by using four different algorithms and comparison the performance of CP-OFDM and ZP-OFDM.

    目 錄 圖表索引 iii 第一章 緒論 1 1.1導論……………………………………………………1 1.2 CP-OFDM與ZP-OFDM介紹………………………..1 1.3時序同步錯誤影響……………………………………4 1.4研究動機………………………………………………9 第二章 利用前置區塊估測時序 11 2.1 S&C演算法介紹……………………………………...11 2.2 Minn演算法介紹……………………………………..14 2.3 GYHH演算法介紹…………………………………...16 2.4模擬結果與比較………………………………………19 第三章 利用前置符元估測時序 30 3.1 GMPJ演算法介紹…………………………………….30 3.2 CLW演算法介紹……………………………………..38 3.3模擬結果與比較………………………………………45 第四章 結論 58 中英對照表 59 參考文獻 61

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