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研究生： 邱智遠
Chih-Yuan Chiu
論文名稱： 多載波分碼多重進接系統之接收機設計及多接收天線之效能比較
MC-CDMA Receiver designs and performance comparison with multiple antennas
指導教授： 陳永芳
Yung-Fang Chen
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： 93
語文別： 中文
論文頁數： 74
中文關鍵詞： 多載波分碼多重進接系統 、多級威能濾波器 、多接收天線
外文關鍵詞： MSWF, MC-CDMA, Smart Antenna
相關次數： 點閱：14  下載：0 
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    • 本論文中，我們提出一種以多載波分碼多重進接系統(MC-CDMA)為基礎的接收機並搭配多個接收天線，考量多使用者於上鏈傳送端的通訊情形，並且以旁波瓣消除器(GSC)搭配連續干擾消除器(SIC)的多使用者偵測技術來抵抗其他使用者所造成的多重接收干擾(MAI)，利用了訊號的來向(DOA)以及展頻碼(Spreading code)間不同的訊號特性，以兩個旁波瓣消除器接連分離出目標訊號，並將目前廣泛使用的多級威能濾波器(MSWF)運用於旁瓣消除器上，來降低運算量以及提升效能，並達到快速收斂的目的，我們稱之為新型連鎖式一維處理演算法。最後並實際應用一種多級威能濾波器之級數選擇方法，並以電腦的模擬結果與其它的接收機相比較，並針對不同的環境來加以分析。

    中文摘要 目錄 第一章 緒論 1.1 前言.............................................................1 1.2 論文架構.........................................................3 第二章 通道模型及基本通訊架構 2.1 無線通訊之通道模型簡介...........................................4 2.1.1 通道的衰落特性.................................................5 2.1.2 通道模型.......................................................9 2.2 多天線接收技術...................................................11 2.3 多載波之展頻系統簡介.............................................17 2.3.1 MC DS-CDMA.....................................................17 2.3.2 MT-CDMA........................................................19 2.3.3 MC-CDMA........................................................20 2.4 連續干擾消除器(SIC)簡介..........................................25 第三章 系統模型及接收機設計 3.1 威能濾波器(Wiener filter) .......................................27 3.2 多級威能濾波器(Multistage Wiener filter) ........................29 3.2.1等效的威能濾波器................................................30 3.2.2多級威能濾波器..................................................33 3.2.3旁波瓣消除器(Generalized Sidelobe Canceller,GSC)................37 3.3 系統模型及接收機設計.............................................40 3.3.1系統及環境設定..................................................40 3.3.2天線響應的估測..................................................44 3.3.3 連鎖式一維處理演算法...........................................45 3.3.4 適用於SIC接收機之新型連鎖式一維處理演算法......................49 3.3.5 多級威能濾波器之級數選擇.......................................52 第四章 模擬與討論 4.1 模擬環境參數.....................................................53 4.2 模擬結果及分析...................................................54 第五章 結論 5.1 前言............................................. ..........72 參考文獻 ........................................................... 73

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