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再生伪码测距技术研究综述.docx

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再生伪码测距技术研究综述 [Abstract] Laserrangefindingtechnologyandultrasonicrangefindingtechnologyaretwocommonlyuseddistancemeasuringtechnologies.However,thesetwotechnologiesbothhavetheirownlimitations.Inrecentyears,thestudyofregenerativepseudocodetechnologyhasshownitspotentialindistancemeasurement.Thisarticleprovidesacomprehensivereviewoftheregenerativepseudocodetechnologyanditsapplicationsindistancemeasurement. [Keywords] Regenerativepseudocodetechnology,distancemeasurement,laserrangefinding,ultrasonicrangefinding [Introduction] Distancemeasurementtechnologyiswidelyusedinvariousfields,includingsurveying,robotics,automation,etc.Laserrangefindingtechnologyandultrasonicrangefindingtechnologyaretwofrequentlyusedtechnologies.Laserrangefindingtechnologyhastheadvantagesofhighaccuracyandlongrange,butitsrequirementforthemeasurementenvironmentishigh,anditiseasilyaffectedbyexternalfactorssuchasdust,smoke,andfog.Ultrasonicrangefindingtechnologyiseasytoimplementandhasalowrequirementforthemeasurementenvironment,butitsaccuracyislowerthanthatoflaserrangefindingtechnology,anditsmeasurementrangeissmaller.Inrecentyears,thestudyofregenerativepseudocodetechnologyhasemergedasanewwayofdistancemeasurement.Thistechnologyhasmanyadvantages,suchashighmeasurementaccuracy,longmeasurementrange,andstronganti-interferenceability.Therefore,ithasattractedmuchattention.Thisarticleaimstoprovideacomprehensivereviewoftheregenerativepseudocodetechnologyanditsapplicationsindistancemeasurement. [RegenerativePseudocodeTechnology] 1.Workingprinciple Regenerativepseudocodetechnologyisbasedonthetimedifferenceofarrival(TDoA)method,whichmeasuresthedistancebetweenthetransmittingandreceivingterminalsbymeasuringthetimedifferenceofthesignalarrivalateachterminal. Theworkingprincipleoftheregenerativepseudocodetechnologyisasfollows: First,thetransmittersendsabinarypulsesequencesignaltothetarget.Thereceiverreceivesthesignal,amplifiesandprocessesit,andthenreflectsitbacktothetargetafteracertaindelay.Afterthetransmitterreceivestheref