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研究生:謝俊彥
研究生(外文):Chun-Yen Hsieh
論文名稱:適用於高速鐵路通訊之濾波式多載波系統設計
論文名稱(外文):FMT system design for high speed rail communication
指導教授:魏學文魏學文引用關係
指導教授(外文):Shyue-Win Wei
學位類別:碩士
校院名稱:國立暨南國際大學
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:2010
畢業學年度:98
語文別:中文
論文頁數:128
中文關鍵詞:濾波式多載波嚴格取樣非嚴格取樣子載波偏移碼際干擾等化器傳輸容量
外文關鍵詞:FMTcritical samplednoncritical sampledICIISIequalizercapacitycritical samplednoncritical sampledICIISIequalizercapacity
相關次數:
  • 被引用被引用:0
  • 點閱點閱:261
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  • 下載下載:10
  • 收藏至我的研究室書目清單書目收藏:0
在本論文裡,使用了兩種不同取樣技術的濾波式多載波(Filtered Multitone,FMT)系統來設計可適用於高速鐵路通訊的架構。FMT系統因為有很好的頻譜包含以及彼此之間子載波並不重疊的特性,因此對子載波偏移敏感度低,故適合運用在高速移動環境中。FMT系統所使用的取樣技術分別為:嚴格取樣系統與非嚴格取樣系統。其中嚴格取樣系統採用內縮截止頻率方法對抗子載波偏移干擾量,而非嚴格取樣系統則採取升頻取樣倍數因子的提高來對應。雖然FMT系統需要等化器來消除碼際干擾,但是卻不需要太多的子通道就能獲得較高的傳輸容量。
This research presents both different sampling types for filtered multitone (FMT) system in the high speed rail environment. The FMT transmission system is a filter bank-based multicarrier technique that has characteristics of a high spectral containment and the subcarriers do not overlap each other, so intercarrier interference (ICI) sensitivity is low. In this paper, we use two different architectures: critical sampled and noncritical sampled techniques to design the system. In the FMT transmission system, although it need the equalizer to eliminate system itself generated intersymbol interference (ISI), but that can obtain a higher transmission capacity without too many sub-channels
誌謝 I
中文摘要 III
英文摘要 V
目錄 VII
圖目錄 IX
表目錄 XIII
第1章 前言 1
第2章 高速鐵路通道環境 3
2-1 高速鐵路發展介紹 3
2-1-1 高速鐵路通訊發展 5
2-1-2 WiMAX於高速鐵路現況 9
2-2 高速鐵路通道特性 10
2-2-1 大範圍與小範圍衰減模型 12
2-2-2 無線傳輸通道時散與時變特性 16
2-3 高速鐵路通道模型 22
2-3-1 延遲時間(Delay spread) 22
2-3-2 功率延遲概觀(Power delay profile, PDP) 24
2-3-3 Jakes’ Model 25
第3章 FMT系統模型 33
3-1 FMT系統介紹 33
3-2 多重相位濾波器(Polyphase filter) 34
3-3 濾波器組(Filter bank) 48
3-4 FMT系統有效率實現架構 51
3-4-1 嚴格取樣系統 53
3-4-2 非嚴格取樣系統 57
3-5 原型濾波器及窗型函數種類 61
3-5-1 方根餘玄濾波器搭配窗形函數 62
3-5-2 Cherubini’s coaster function濾波器搭配窗形函數 64
3-6 FMT系統通道響應及估測 66
第4章 適用於高鐵通訊之FMT系統–嚴格取樣系統 71
4-1 嚴格取樣系統介紹 71
4-2 等化器設計 72
4-2-1 Zero forcing 75
4-2-2 Wiener filter 76
4-2-3 Automatic Gain Control 79
4-3 高速環境下SIR分析 81
4-4 系統錯誤率之比較分析 87
第5章 適用於高鐵通訊之FMT系統–非嚴格取樣系統 95
5-1 非嚴格取樣系統介紹 95
5-2 高速環境下SIR分析 97
5-3 系統錯誤率之比較分析 102
第6章 FMT系統容量 109
6-1 傳輸容量介紹 109
6-2 OFDM系統傳輸容量 110
6-3 FMT系統傳輸容量 111
6-4 OFDM系統與FMT系統容量之比較 113
第7章 結論 125
參考文獻 127
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