【正文】
本 科 生 畢 業(yè) 設(shè) 計(jì)基于 Simulink 的 QAM 調(diào)制解調(diào)實(shí)現(xiàn) 獨(dú) 創(chuàng) 性 聲 明本人鄭重聲明:所呈交的畢業(yè)論文(設(shè)計(jì))是本人在指導(dǎo)老師指導(dǎo)下取得的研究成果。除了文中特別加以注釋和致謝的地方外,論文(設(shè)計(jì))中不包含其他人已經(jīng)發(fā)表或撰寫的研究成果。與本研究成果相關(guān)的所有人所做出的任何貢獻(xiàn)均已在論文(設(shè)計(jì))中作了明確的說明并表示了謝意。簽名: 年 月 日授 權(quán) 聲 明本人完全了解許昌學(xué)院有關(guān)保留、使用本科生畢業(yè)論文(設(shè)計(jì))的規(guī)定,即:有權(quán)保留并向國(guó)家有關(guān)部門或機(jī)構(gòu)送交畢業(yè)論文(設(shè)計(jì))的復(fù)印件和磁盤,允許畢業(yè)論文(設(shè)計(jì))被查閱和借閱。本人授權(quán)許昌學(xué)院可以將畢業(yè)論文(設(shè)計(jì))的全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫進(jìn)行檢索,可以采用影印、縮印或掃描等復(fù)制手段保存、匯編論文(設(shè)計(jì)) 。本人論文(設(shè)計(jì))中有原創(chuàng)性數(shù)據(jù)需要保密的部分為(如沒有,請(qǐng)?zhí)顚憽盁o” ): 簽名: 年 月 日指導(dǎo)教師簽名: 年 月 日 摘 要本文設(shè)計(jì)的是基于 Simulink 的 QAM 調(diào)制解調(diào)的實(shí)現(xiàn)。首先介紹了 QAM 調(diào)制解調(diào)系統(tǒng)的基本原理,然后介紹了仿真軟件 Simulink 下系統(tǒng)建模與仿真的基本操作,重點(diǎn)是對(duì) 16QAM 系統(tǒng)各個(gè)模塊進(jìn)行建模與仿真,實(shí)現(xiàn)了 16QAM 的調(diào)制與解調(diào)。最后做了一個(gè)2DPSK 系統(tǒng)仿真,將它與 16QAM 系統(tǒng)進(jìn)行比較,得出 16QAM 是一種相對(duì)優(yōu)越的調(diào)制解調(diào)系統(tǒng)這一結(jié)論。關(guān)鍵字:QAM 調(diào)制解調(diào);Simulink;仿真ABSTRACTThis design is based on Simulink, QAM modulation and demodulation implementation. QAM modulation and demodulation first introduced the basic principles of the system, and then introduced the Simulink simulation software for modeling and simulation of the system39。s basic operations, focused on each module 16QAM system modeling and simulation, to achieve a 16QAM modulation and demodulation. Finally made a 2DPSK system simulation, the system will pare it with 16QAM, 16QAM obtained is a relatively superior modulation and demodulation system this conclusion.Keyword: QAM modulation and demodulation;Simulink;Simulation目 錄1 緒論 ...........................................................................................................................................1 QMA 簡(jiǎn)介及應(yīng)用 .................................................................................................................1 Simulink 軟件與通信仿真 ....................................................................................................1 論文主要內(nèi)容 ........................................................................................................................22 現(xiàn)代數(shù)字調(diào)制技術(shù) QAM ........................................................................................................3 QAM 調(diào)制原理 .....................................................................................................................3 QAM 解調(diào)原理 .....................................................................................................................4 MQAM 信號(hào)星座圖 ..............................................................................................................5 QAM 的誤碼率性能 .............................................................................................................63 QAM 調(diào)制解調(diào)的實(shí)現(xiàn)與仿真 ................................................................................................8 Simulink 軟件 ........................................................................................................................8 Simulink 模塊 .....................................................................................................................8 Simulink 建模與仿真 .........................................................................................................9 QAM 調(diào)制模塊建模與仿真 ................................................................................................9 信號(hào)源模塊 .......................................................................................................................10 串∕并轉(zhuǎn)換模塊 ...............................................................................................................10 2/4 電平轉(zhuǎn)換模塊 .............................................................................................................12 其余模塊 ...........................................................................................................................14 QAM 解調(diào)模塊建模與仿真 ..................................