基于Multisim的通信电路设计.docx

题目基于Multisim的通信电路设计学生姓名学号专业班级指导教师学院答辩日期基于Multisim的调频通信系统仿真SimulationoffrequencymodulationcommunicationsystembasedonMultisim摘要调频通信系统设计中系统的介绍了发射系统和接收系统设计方案特别是发射系统和接收系统的基本功能频率选择功放等最后定性、定量分析这些电路性能。这些电路包括了发射系统和接收系统中的变容二极管直接调频电路、射极跟随器、放大器、高频小信号放大器、本振电路、混频电路、功放电路、鉴频器、低频放大器等。利用Multisim仿真软件将各个电路进行仿真最后把各个电路进行级联并进行修改修改之后逐级进行调试仿真得出最终仿真结果图。设计的基本目的是：通过理论和实践学习使我们了解各个电路工作处于高频时的工作原理特性参数及微变等效电路等掌握高频单元电路的线路组成、基本工作原理、分析方法、技术要求及典型集成电路的实际应用并且具备一定的理论水平和足够的实践技能为进一步学习通讯技术的专业知识和职业技能打下基础。关键词：调频；发射系统；接收系统；Multisim仿真；电路分析AbstractDesignofFMcommunicationsystemintroducedthesystemofemissionandreceivingsystemdesignschemeEspeciallythebasicfunctionofemissionandreceivingsystemfrequencyselectionPoweramplifierThecircuitperformanceanalysisandqualitativequantitative.ThecircuitincludesaemissionsystemandreceivingsysteminVaractordiodedirectFMemitterfolloweramplifierHighfrequencysmallsignalamplifierTheoscillatorcircuitmixercircuitThepoweramplifiercircuitfrequencydetectorandlow-frequencyamplifier.EachcircuitissimulatedwithMultisimsimulationsoftwareFinallyallthecircuitsarecascadedAndmodifyAfterthemodificationStepdebuggingsimulationThefinalsimulationresultsfigure.Thebasicdesignofthisfinishschoolare:Throughthecombinationoftheoryandpracticesoweknowwheneachcircuitathighworkingprinciplecharacteristicsandmicro-dependentequivalentcircuitparametersfrequencycontrolcircuitofthelineunitcompositionthebasicworkingprinciplemethodstechnicalrequirementsandsometypicalICandhaveacertaintheoreticallevelandenoughofthepracticalskillscommunicationtechnologiesforthefurtherstudyofexpertiseandprofessionalskillsbasis.Keywords:frequencymodulation;emissionsystem;receivingsys