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研究生： 郭高岳
Kao-Yueh Kuo
論文名稱： 正交多工正交振幅調變在非線性放大狀況下之互調變效應研究
Intermodulation Effect on Nonlinearly Power-Amplified OMOAM Signals
指導教授： 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 - 電機工程學系
Department of Electrical Engineering
畢業學年度： 90
語文別： 中文
論文頁數： 78
中文關鍵詞： 傳輸率 、非線性效應 、放大器 、互調變 、正交多工正交振幅調變 、頻譜效益
外文關鍵詞： Spectral Efficiency, Transmission Rate, OMOAM, Intermodulation Effect, Power Amplifiers, Nonlinearity
相關次數： 點閱：21  下載：0 
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    • 本論文擬對一新型調變家族─正交多工正交振幅調變[1] ( Orthogonally-Multiplexed Orthogonal Amplitude Modulation ) ，探討其非線性放大狀況下的互調變效應。論文中，使用放大器的三次諧波參數(Third-Order Harmonic)來設定非線性模型，而訊號的互調變效應(Intermodulation Effect)以頻帶內的功率來衡量，探討了第二類基底和第四類基底，在不同調變參數下，互調變的功率與趨勢。此外，並對傳輸率(Transmission Rate)與頻譜效益(Spectral Efficiency)加以考量，來作一綜合性的評估。

    A novel class of coherent Orthogonally-Multiplexed Orthogonal Amplitude Modulation (OMOAM) [1] signal is investigated in this thesis. The research focuses on the intermodulation effect caused by the nonlinear characteristic of the amplifiers such as high power amplifiers and solid-state power amplifiers. Intermodulation power is derived by an exact analysis, and the trends of the transmission rate and spectral efficiency are including to be compared.

    第一章 緒論 1.1 正交多工正交振幅調變與正交分頻多工系統…1 1.2 放大器之非線性與訊號互調變概念……………3 1.3 論文研究動機……………………………………7 第二章 系統概述 2.1 正交多工正交振幅調變訊號之簡介……………8 2.2 基底與參數的選擇………………………………16 2.3 互調變的族群、類型與衡量方式………………23 第三章 多脈波基底訊號之互調變效應 3.1 多脈波基底訊號指定技巧………………………26 3.2 多脈波基底訊號之互調變功率分析……………30 3.3 互調變的趨勢探討與功率表……………………43 3.4 傳輸率與頻譜效益的考量………………………52 第四章 單脈波基底訊號之互調變效應 4.1 單脈波基底訊號指定技巧………………………54 4.2 單脈波基底訊號之互調變功率分析……………56 4.3 互調變的趨勢探討與功率表……………………60 4.4 傳輸率與頻譜效益的考量………………………63 第五章 結論……………………………………………65 附錄A 功率調節函數與數量函數………………67 附錄B 不同基底與參數的互調變項……………71 附錄C 互調變計算範例……………………………76

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