本科毕业论文（设计）题目：基于FPGA单边带调制系统的设计学生姓名：指导教师：所在分院：专业：班级：二O一三年五月基于FPGA单边带调制系统的设计摘要：随着无线电技术的发展和各种通信设备不断地投放市场，通信频道拥挤的问题日渐突出，因此占用较窄频带或能在同一频段内容纳更多用户的通信技术普遍地收到人们的重视。例如，单边带通信就是一种目前应用比较广泛并具有占用较窄频带特电的通信方法。而FPGA具有体系结构和逻辑单元灵活、集成度高、适用范围宽等特点，可以实现超大规模的电路，编程也很灵活，与门阵列等其他ASIC相比，它具有开发周期短、设计制造成本低、开发工具先进、标准产品无需测试、质量稳定以及可实时在线检测等优点，故这里基于FPGA对单边带进行调制。首先，设置调制信号频率为5KHZ，振幅为5，载波频率为100KHZ，振幅为10，运用Matlab编程得到单边带信号的波形与功率谱，与调制信号进行对比，观察调制效果。然后运用Simulink分别对滤波法与相移法两种调制方法进行建模仿真，通过观察仿真波形，最终相移法的调制效果要优于滤波法。最后，对以上低层设计产生的VHDL的RTL代码和仿真文件进行综合、编译适配以及仿真。结果表明本文设计方法能够很好的进行单边带信号调制。关键词：单边带；调制；仿真；FPGAFPGA-basedonsingle-sidebandmodulationsystemAbstract:Withthedevelopmentofradiotechnologyandvariouscommunicationsequipmentconstantlyputonthemarket,communicationchannelcongestionproblemshavebecomeincreasinglyprominent,sotakethenarrowbandorcommunicationtechnologycansatisfymoreusersinthesamefrequencybandcontentgenerallyreceivedpeople'sattention.Forexample,isakindofwidelyusedcurrentlyandhasoccupiedthenarrowbandcommunicationmethodofspecialelectricalcommunicationwithunilateral.WhileFPGAhasthecharacteristicsofflexiblesystemstructureandlogicunit,highintegration,wideapplicationscope,canrealizelargescalecircuits,programmingisalsoveryflexible,comparedtootherASICgatearray,ithasashortdevelopmentcycle,lowmanufacturingcost,advanceddevelopmenttool,standardproductwithouttesting,stablequalityandreal-timeonlinedetectionetc.,sohereisbasedontheFPGAofSSBmodulation.Firstofall,theuseofMATLABprogramming,setthefrequencymodulationsignal,thecarrierfrequency,amplitudeis1,thesimulationtobemodulatedsignalwaveformandpowerspectrum,arecomparedwiththemodulationsignal,observethemodulationeffect.AndthenSimulinkisusedtofilterandphaseshiftmethodoftwokindsofmodulationmethodsformodelingandsimulation,byobservingthesimulationwaveform,modulationeffectoffinalphaseshiftmethodissuperiortothefilteringmethod.Finally,theRTLcodeandsimulationfilestothelowlayerdesignofVHDLadapterandcomprehensive,compiledsimulation.Keywords:singlesideband;modulation;simul