【正文】 upied the narrow band munication method of special electrical munication with unilateral. While FPGA has the characteristics of flexible system structure and logic unit, high integration, wide application scope, can realize large scale circuits, programming is also very flexible, pared to other ASIC gate array, it has a short development cycle, low manufacturing cost, advanced development tool, standard product without testing, stable quality and realtime online detection etc., so here is based on the FPGA of SSB modulation. First of all, the use of MATLAB programming, set the frequency modulation signal, the carrier frequency, amplitude is 1, the simulation to be modulated signal waveform and power spectrum, are pared with the modulation signal, observe the modulation effect. And then Simulink is used to filter and phase shift method of two kinds of modulation methods for modeling and simulation, by observing the simulation waveform, modulation effect of final phase shift method is superior to the filtering method. Finally, the RTL code and simulation files to the low layer design of VHDL adapter and prehensive, piled simulation. Keywords: single sideband。結(jié)果表明本文設(shè)計方法能夠很好的進行單邊帶信號調(diào)制。然后運用 Simulink分別對濾波法與相移法兩種調(diào)制方法進行建模仿真，通過觀察仿真波形，最終相移法的調(diào)制效果要優(yōu)于濾波法。而 FPGA 具有體系結(jié)構(gòu)和邏輯單元靈活、集成度高、適用范圍寬等特點，可以實現(xiàn)超大規(guī)模的電路，編程也很靈活，與門陣列等其他 ASIC 相比，它具有開發(fā)周期短、設(shè)計制造成本低、開發(fā)工具先進、標(biāo)準(zhǔn)產(chǎn)品無需測試、質(zhì)量穩(wěn)定以及可實時在線檢測等優(yōu)點，故這里基于 FPGA 對單邊帶進行調(diào)制。 本科畢業(yè)論文（設(shè)計） 題 目： 基于 FPGA 單邊帶調(diào)制系統(tǒng)的設(shè)計 學(xué)生姓名： 指導(dǎo)教師： 所在分院： 專 業(yè)： 班 級： 二 O 一三年五月 基于 FPGA 單邊帶調(diào)制系統(tǒng)的設(shè)計 摘要 ： 隨著無線電技術(shù)的發(fā)展和各種通信設(shè)備不斷地投放市場，通信頻道擁擠的問題日漸突出，因此占用較窄頻帶或能在同一頻段內(nèi)容納更多用戶的通信技術(shù)普遍地收到人們的重視。例如，單邊帶通信就是一種目前應(yīng)用比較廣泛并具有占用較窄頻帶特電的通信方法。首先，設(shè)置調(diào)制信號頻率為 5KHZ，振幅為 5，載波頻率為 100KHZ，振幅為 10，運 用 Matlab 編程得到單邊帶信號的 波形與功率譜，與調(diào)制信號進行對比，觀察調(diào)制效果。最后，對以上低層設(shè)計產(chǎn)生的 VHDL 的 RTL 代碼和仿真文件進行綜合、編譯適配以及仿真。 關(guān)鍵詞 ：單邊帶；調(diào)制；仿真； FPGA FPGAbased on singlesideband modulation system Abstract:With the development of radio technology and various munications equipment constantly put on the market, munication channel congestion problems have bee increasingly prominent, so take the narrow band or munication technology can satisfy more users in the same frequency band content generally received people39。 modulation。 FPGA I 目錄 1 引言 ................................................................................................................................. 1 課題的研究意義 ....................................................................................................... 1 國內(nèi)外研究現(xiàn)狀 ....................................................................................................... 1 課題的主要內(nèi)容 ....................................................................................................... 2 2 SSB 的調(diào)制技術(shù)原理 ..................................................................................................... 3 概述 ........................................................................................................................... 3 SSB 的調(diào)制原理 ....................................................................................................... 4 本章小結(jié) ................................................................................................................... 4 3 MATLAB/SIMULINK 的 SSB 系統(tǒng)的設(shè)計 .................................................................. 5 軟件簡介 ................................................................................................................... 5 濾波法產(chǎn)生單邊帶信號 ........................................................................................... 5 濾波法產(chǎn)生 SSB 信 號進行 Matlab 設(shè)計仿真 ................................................. 6 濾波法設(shè)計 Simulink 建模仿真 ....................................................................... 7 相移法產(chǎn)生單邊帶信號 ......................................................................................... 11 相移法產(chǎn)生 SSB 信號進行 Matlab 設(shè)計仿真 ............................................... 12 相移法設(shè)計 Simulink 建模仿真 ..................................................................... 13 本章小結(jié) ................................................................................................................. 15 4 基于 FPGA 的 SSB 調(diào)制系統(tǒng)的設(shè)計 .......................................................................... 16 FPGA 簡介 .............................................................................................................. 16 使用 FPGA 進行開發(fā)的優(yōu)點 ......................................................................... 17 FPGA 設(shè)計的開發(fā)流程 .................................................................................. 17 使用 QUARUSⅡ?qū)崿F(xiàn)時序仿真 ............................................................................... 19 QuarusⅡ介紹 .................................................................................................. 19 轉(zhuǎn)換為 VHDL 語言并綜合 ............................................................................ 22 使用 Modelsim 實現(xiàn)時序仿真 ....................................................................... 24 使用 QuartusⅡ?qū)崿F(xiàn)時序仿真 ........................................................................ 27 本章小結(jié) ................................................................................................................. 27 5 結(jié)論 ............................................................................................................................... 28 設(shè)計過程中遇到的問題以及解決方法 ................................................................. 28 體會 ......................................................................................................................... 28 致謝 ..............................