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automaticcontrolcybernationautomaticcontrolsystemautomaticcontroltheoryclassicalcontroltheorymoderncontroltheoryintelligentcontroltheoryopen-loopcontrolclosed-loopcontrolinputoutputgivenunit/elementcomparingunit/elementamplifyingunit/elementactuatingunit/elementcontrollingunit/element(controlled)plantfeedbackunit/elementcontrollerperturbance/disturbanceforwardchannelfeedbackchannelconstantcontrolsystemservo/drivecontrolsystemprogrammedcontrolsystemcontinuouscontrolsystemdiscretecontrolsystemlinearcontrolsystemnonlinearcontrolsystemtime-invariantcontrolsystemtime-variantcontrolsystemstabilityrapidityaccuracymathematicalmodeldifferentialequationnonlinearcharacteristiclinearizationprocessingTaylorseriestransferfunctionproportionalelementintegratingelementfirstorderinertialelementsecondorderinertialelementsecondorderoscillationelementdifferentiationelementfirstorderdifferentiationelementsecondorderdifferentiationelementdelayelementdynamicstructureblockserialunitparallelunitsignalflowgraphMason’sgainformulatimedomainanalysismethodperformanceindexstepfunctionrampfunctionparabolicfunction/accelerationfunctionimpulsefunctionsinusoidalfunctiontransientresponsesteady-stateresponsedelaytimerisetimepeaktimesettlingtimemaximumovershootsteady-stateerrorundampingunderdampingoverdampingeigenrootpolezerorealaxisimaginaryaxissteady-statecomponenttransientcomponentmotionmodeattenuationcoefficientinitialphaseangleresponsecurvedominantpoleRouthstabilitycriterionSSplaneHurwitzstabilitycriterionmeasurementerroragitationerrorstructuralerrordeviationrootlocusroutinerootlocusrootlocusequationmagnitudeargumentsymmetryseparation/breakawaypointmeeting/break-inpointasymptoteemergenceangle/angleofdepartureincidenceangle/angleofarrivalgeneralizedrootlocuszerodegreerootlocusdipole/zero-polepairfrequency-domainanalysismethodfrequencycharacteristicpolarcoordinatesystemrectangularcoordinatesystemmagnitude-frequencycharacteristicphase-frequencycharacteristicmagnitude-phasefrequencycharacteristicminimumphasesystemnonminimumphasesystemNyquiststabilitycriterionBodetheoremstabilitymarginmagnitudemarginphasemarginlogmagnitude-frequencycharacteristicundampedoscillationangularfrequencydampedoscillationangularfrequencydampinganglebandwidthfrequencycrossover/cutofffrequencyresonancepeaksystemcompensationleadcompensationlagcompensationself-excitedoscillationdeadzonecharacteristicsaturationcharacteristicbacklashcharacteristicdescribingfunctionmethodphaseplanemethodsamplingcontrolsystemdigitalcontrolsystemfrequencyspectrumsamplingtheoremsignalrecurrenceLaplacetransformZZtransformfinal-valuetheoremdifferenceequationiterativemethodpulsetransferfunctionzero-orderholdermappingblockdiagramBodediagramcharacteristicequationcontrollabilitycriticaldampingdampingconstantdampingratioinitialstateinitial-valuetheoremZinverseZ-transformationnegativefeedbackpositivefeedbackNicholschartpartialfractionexpansionargumentprinciplerelativestabilityresonantfrequencyRouthtabulation/arraysingularityasymptoticstabilitycontrolaccuracycriticalstabilitycouplingdecouplingproportionalintegralderivativeregulator(PID)series/cascadecompensationsingleinputsingleoutput(SISO)multiinputmultioutput(MIMO)lowpassfilternonlinearsystemcompoundcontroldampedoscillationmonitoringfeedbackbreakfrequencystablefocus/node