外文翻译--MATLAB与电路分析.doc

文献翻译英文原文：CircuitanalysiswithMATLABTheelectricalappliancesisbecomingmoreandmoreimportantintodaysworldwherecomputertechnology,internettechnologyandcommunicationtechnologyaredevelopingrapidlyandpeopleslifehasbeengreatlyimproved.Circuitanalysisisanecessarycourseandbasicknowledgeforelectronicspecialstudent.Itisthefoundationofcircuitmaintenanceandcircuitapplication.Asoneofthemostimportantsubjectsforanunder-graduatedstudentwhosmayorinelectronicinformationengineering,circuitanalysisstatefortheprofessionalcapability.Withthedevelopmentofthecircuitanalysisfield,circuitsgetmorecomplicatedandsimulationtechnologyusingcomputergrownup.Dynamiccircuitanalysisisthemostdifficult,whichtakestimeandahugemountofmanualworkespeciallywhencircuitiscomplicated.SoweusestheMatlab/Simulinksimulationtoolsandthepowersystemblockmodellibrarytomakeanalysisonseveralsimplecircuitsuchasthealternatingurgentsteady-statecircuit、directcurrentsteady-statecircuitandfirst-orderdynamiccircuit.ThecircuitsareprogrammedbyMatlablanguageandsimulateitbySimulinktools.Althoughsimulationbycomputersoftwarecannotreplacethetraditionalway,ithelpspeopletounderstandcircuitanalysisdirectlyandeffectively.Bythesetools，peoplecandemonstratethecircuitperformancesandreducecomplicatedcalculation.Itmakesussavealotofwork.Duringthisprocess，weknowhowMatlab/SimulinkworkandshowtheadvantageofMatlab/Simulinktoolsoncircuitanalysis，itturnsouttobesimple，convenience，efficientandflexible.MATLABisahigh-performancelanguagefortechnicalcomputing.Itintegratescomputation,visualization,andprogramminginaneasy-to-useenvironmentwhereproblemsandsolutionsareexpressedinfamiliarmathematicalnotation.Typicalusesinclude:1Mathandcomputation2Algorithmdevelopment3Modeling,simulation,andprototyping4Dataanalysis,exploration,andvisualization5Scientificandengineeringgraphics6Applicationdevelopment,includinggraphicaluserinterfacebuildingMATLABisaninteractivesystemwhosebasicdataelementisanarraythatdoesnotrequiredimensioning.Thatallowsyoutosolvemanytechnicalcomputingproblems,especiallythosewithmatrixandvectorformationsinafractionofthetime,whichwouldtakealotoftimetowriteaprograminascalarnon-interactivelanguagesuchasCorFORTRAN.ThenameMATLABstandsformatrixlaboratory.MATLABwasoriginallywrittentoprovideeasyaccesstomatrixsoftwaredevelopedbytheLINPACKandEISPACKprojects.Today,MATLABenginesincorporatetheLAPACKandBLASlibraries,embeddingthestateoftheartinsoftwareformatrixcomputation.MATLABhasevolvedoveraperiodofyearswithinputmanyusers.Inuniversityenvironments,itisthestandardinstructionaltoolforintroductoryandadvancedcoursesinmathematics,engineering,andscience.Inindustry,MATLABisthetoolofchoiceforhigh-productivityresearch,development,andanalysis.MATLABfeaturesafamilyofadd-onapplication-specificsolutionscalledtoolboxes.VeryimportanttomostusersofMATLAB,toolboxesallowyoutolearnandapplyspecializedtechnology.ToolboxesarecomprehensivecollectionsofMATLABfunctions(M-files)thatextendtheMATLABenvironmenttosolveparticularclassesofproblem.Areasinwhichtoolboxesareavailableincludesignalprocessing,controlsystems,neuralnetworks,fuzzylogic,wavelets,simulation,andmanyothers.TheMATLABsystemconsistsoffivemainparts:Developmentenvironment.ThisisthesetoftoolsandfacilitiesthathelpyouuseMATLABfunctionsandfiles.Manyofthesetoolsaregraphicaluserinterfaces.ItincludestheMATLABdesktopandCommandWindows,acommandhistory,aneditoranddebugger,andbrowsersforviewinghelp,theworkspaces,files,andthesearchpath.TheMATLABMathematicalFunctionLibrary.Thisisavastcollectionofcomputationalalgorithmsrangingfromelementaryfunctionslikesum,sine,cosine,andcomplexarithmetic,tomoresophisticatedfunctionslikematrixeigenvalue,Besselfunctions,andfastFouriertransforms.TheMATLABLanguage.Thisisahigh-levelmatrix/arraylanguagewithcontrolflowstatements,functions,datastructures,input/output,andobject-orientedprogrammingfeatures.Itallowsboth“programminginthesmall”rapidlycreatequickanddirtythrow-awayprograms,and“programminginthelarge”tocreatecompletelargeandcomplexapplicationprograms.Graphics.MATLABhasextensivefacilitiesfordisplayingvectorsandmatricesasgraphs,aswellasannotatingandprintingthesegraphs.Itincludeshigh-levelfunctionsfortwo-dimensionalandthree-dimensionaldatavisualization,imageprocessing,animation,andpresentationgraphics.Italsoincludeslow-levelfunctionsthatallowyoutofullycustomizetheappearanceofgraphicsaswellasbuildcompletegraphicaluserinterfacesonyourMATLABapplications.TheMATLABApplicationProgramInterface(API).ThisisalibrarythatallowsyoutowriteCandFORTRANprogramsthatinteractwithMATLAB.ItincludefacilitiesforcallingroutinesfromMATLAB(dynamiclinking),callingMATLABasacomputationalengine,andforreadingandwritingMAT-files.InthecircuitanalysistheRLCtwostepselectriccircuitsanalysisprocessisquitecomplex,andmustmaketheresponsecurveanalysissystemtheperformanceindexextremelytobealsodifficult.Moreovertothesecond-orderdifferentialequationsolutionalsoisquitetroublesome,thereforecausesthemajoritytheschoolmatewhichstudiesthisclasswhenstudiestwostepselectriccircuitsunderstandsquitedifficultly.ButMATLABisvisiblefacescienceandengineeringcalculationlarge-scaleoutstandingscienceandtechnologyapplicationsoftware,itssentencesuccinct,thefunctionformidable,simpleispractical,inthecircuitanalysis,thecomputationhasthewidespreadapplication.MATLABprovidesmassiveandtherichbuilt-infunction,thehighlyeffectivesuccinctsentence,canmeeteachkindofneedswhichtheelectriccircuitcalculates,theMATLABlanguagepermissionpluralnumberdirectparticipationoperation,hassatisfiedthealternating-currentcircuitanalysis,thecomputationdemand.TheMATLABlanguagemaydirectlydrawupthevoltage,theelectriccurrentmeasuresthechart,butmeasuresthechartanalyzesthealternating-currentcircuitessentialimportanttool,isothercomputationlanguagestrengthcannot.参考译文：MATLAB与电路分析在当今世界，计算机技术，网络技术和通信技术正在迅猛的发展，人民的生活水平逐步提高，电子产品变得越来越重要。对于电子专业的学生来说电路分析是一门必要的课程和基础的知识技能，它是电路维护和电路应用的基础。对于那些专业为电子信息工程、职业能力为电路分析的本科学生来说，电路分析是最为重要的专业课程之一。随着电路分析领域的发展,电路变得越来越复杂,于是计算机仿真技术应运而生。动态电路的分析是最困难的，它不但耗费时间而且要花费很多的人工，尤其是当电路很复杂的时候。因此，我们采用了基于Mat