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Title：CALIBRATINGMETHODFORELECTRONICCOMPASSElectroniccompassisanelectroniccompassbymeasuringtheEarth'smagneticfieldtoachievedirectionalnavigationdevice,itisanimportantnavigationaltoolthatcanprovidereal-timedataobjectsheadingandattitude,andhasasmallsize,lowcost,fastresponse,noaccumulatederror,etc.,arewidelyusedinmobilerobots,vehicles,aircraftandotherorientationsubsystem;However,duetotheelectroniccompassisbasedonmagneticprinciplescalculationsmagneticbearings,theirworkenvironment,inadditiontootherexternalmagneticfieldEarth'smagneticfieldwillinevitablyaffecttheoutputoftheelectroniccompass,resultinginerrorsaffectmeasurementaccuracy.Therefore,howtoreduceoutsideinterferenceprecisionofitsoutputisengineeringapplicationsmustbeaddressed.Electroniccompasstheexistingliteraturehasproposedseveralpossiblecompasserrorcompensationmethod.YuenCheeWingpaper,three-axismagneticheadingsensorsfullattitudeerrorcompensation'proposedcompasserrorintoquadratureerror,zeroandsensitivityerrorswerecompensated,highcompensationaccuracyofthemethod,butinthecompensationprocessrequiresnon-magneticturntable,butalsothecomputerautomaticallywhenthemeasuredrotationcompassXandY-axissensoroutputmaximum,minimum,thecalibrationprocessiscomplexandrequireshighequipment;HIGHWAYANDTRANSPORTATIONWangJiaxinpaperDevelopmentofhigh-precisionelectroniccompassandShaoTingting,ROCKETSpaperelectroniccompasstiltandLuoslipcompensationalgorithmresearch,theleastsquaremethodtocompensatefortheelectroniccompass,themethodrequiresCompass0°~360°rotationaveragesampling,operationisrelativelycumbersomeandTheamountofdatasamplesofdifferentsizeswillhaveagreaterimpactfittingresult,theamountofdataistoosmall,thecompensationeffectisnotgood,toomuchdatacancauseperformancedegradationfitting;YangxinYong,HuangShengguopapermagneticheadingmeasurementsystemErrorCorrectionMethodandQiZhang,Liang-shuiLei,JiangFan,SongLiu'spaperAutocalibrationofamagneticcompasswithoutheadingreferenceerrorellipsehypothesisisproposedbasedonthemodelcompensationmethod,becauseonlyahypotheticalmodelellipsebasedontheexperimentalexperiencesuggestedthatthelackoftheoreticaldeduction,thecompensationeffectisnotverysatisfactory;ChaoMin,JiangOriental,Wenrainbowpaper,magneticcompasserroranalysisandcalibrationusingananalyticalmethodtoestablishthedirectionofthemagneticmeasurementsystemismoreaccuratemodels,andelectroniccompasscompensationinthehorizontalconditions,butthecompensationprocesstoidentifymoreparameters(up9),andtheresultsshowthecompensationeffectissimilartoovalhypotheticalmodel;HaoZhenhai,HuangShengguopaper,basedonacombinationofdifferentialmagneticcompassheadingsystem.proposedadifferentialmagneticcompass(DMC,DifferentialMagneticCompasses)designprogram,whichusestwoidenticalmagneticcompasstodeterminewhetherthesystemisacombinationoflow-frequencyinterferenceoccurs,ifthesystemglitchesdidnothappen,thentheuseofmagneticcompassnavigation,low-frequencyinterferencewilloccurifthesystemswitchestothegyroscopesystemnavigation.Theprogramdoesnotsubstantiallyimprovethemagneticcompassmeasurementaccuracy,andthenavigationprogramconsistsofapluralityofmagneticcompassandgyroscopestructure,willleadtogreatlyincreasethecost;LuWang,ZhaoZhongandotherpaperMagneticCompassErrorAnalysisandCompensationusingBPneuralnetworkerrormodel,anduseLMlearningalgorithmtotrainthenetwork,themethodneednot0°~360°withintheaveragesampling,withaneuralnetworkcanbeapproximatedfunctionwitharbitraryprecisioncharacteristics,withhighcompensationaccuracy,buttheBPneuralnetworkconvergenceisslow,therighttosetinitialvaluesneedtobeverycareful,andeasytofallintolocalminimum.Insummary,thecurrentelectroniccompasscalibrationmethodsarethemainmethodofleastsquares,ovalassumptionFrance,BPneuralnetworkmethod,etc.Thesemethodsaremorecumbersomecalibrationprocedureortheexistenceofthenecessaryinstrumentsfordemandingcalibrationorcalibrationissuessuchaslackofprecision.ItisanelectroniccompassbymeasuringtheEarth'smagneticfieldtoachievedirectionalnavigationdevice,itisanimportantnavigationaltoolthatcanprovidereal-timedataobjectsheadingandattitude,andhasasmallsize,lowcost,fastresponse,noaccumulatederror,etc.,arewidelyusedinmobilerobots,vehicles,aircraftandotherorientationsubsystem;However,duetotheelectroniccompassisbasedonmagneticprinciplescalculationsmagneticbearings,theirworkenvironment,inadditiontootherexternalmagneticfieldEarth'smagneticfieldwillinevitablyaffecttheoutputoftheelectroniccompass,resultinginerrorsaffectmeasurementaccuracy.Therefore,howtoreduceoutsideinterferenceprecisionofitsoutputisengineeringapplicationsmustbeaddressed.Inordertosimplifythecalibrationprocedure,reducingtherequirementsforthenecessaryequipmentandtoimprovecalibrationaccuracy,thepresentinventiondesignedanelectroniccompasscalibrationmethod,thecalibrationmethodbasedonadaptivedifferentialevolutionmethodandFourierneuralnetwork(AdaptiveDifferentialEvolutionandFourierNeuralNetwork,ADE-FNN),bymeansofFourierneuralnetworkmodelingoftheelectroniccompasserror,theneuralnetworkusingorthogonalFourierseriesexcitationfunctionasanetwork,andusesadapti