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1、外文资料:BasedonnRF24E1andTMC2023automobilecollisionavoidancesystemdevelopmentandrealizationCarengineeringdepartmentofinstituteoftechnologyofMunichByLORENZFERDIDADProgressofsocietywiththedevelopmentoftimes,moreandmorecarshaveenteredordinarypeople'sfamily.Thoughthehighwaytermsisbein
2、gupdated,yetavoidthecrowdedcurrentsituationofgettingonthecarofunavoidablehighway,inaddition,thespeedisimprovedgradually,themalignanttrafficaccidentishappeningallthetime,havebroughttheenormouslifeandpropertylosstopeopleandthesociety.Caranticollisionsystemwhetheronecansendoutseei
3、ngandhearingsurveydeviceofwarningsignalinadvancetodriver.Itinstall,atcar,cansurvey,attemptpedestrian,vehicleorbarrieraroundclosetheautomobilebodyusually;Cansendoutandcollidethedangeroussignalsoontodriverandpassengeraheadoftime,impeldriverbypassdrivertakeemergencymeasurepunishsp
4、ecialdangeroussituationeven,avoidlosses.Atpresent,thoughvariouscountriesstudy,preventsystemofcollidingfrom(usuallycalltheinitiativesecuritysystemintheworld),buthowcouldsolvethetimidandalertproblembetter,perplexingrelevantworkersallthetime.Theresearcherintheworldstudiesthroughal
5、argenumberofexperiments,hasalreadyreachedcommonunderstanding,ifwanttosolveproblemdescribedaboveeffectively,theanticollisionsystemmusthavethefollowingfunctions:1)Mustbecapableofexaminingtheangle,theazimuthalinformationofthegoalisessentialforremovingemptilyandalertly(2)Apttoprodu
6、ceanti-interferenceperformancestrongcomplicatedtransmissionsignal,cooperatewithreal-timehigh-efficientsignaldealwithwithgoalmeasuringalgorithms,inordertoremoveemptilyandalertly.Onlytheabovetwopointscombinetogetherandguaranteethesystematicdependabilitythatthecardefendscollidingc
7、losely.1TMC2023chipandthenRF24E1chipcharacteristicintroducedTMC2032isonekindofnewentiredigitalcorrelationinstrumentelectriccircuit,itscorrelationwordlengthandtherelatedthresholdareprogrammable.Thischipisthemonolithic64CMOSentirenumeralcorrelationinstrumentlargescaleintegratedci
8、rcuitwhichAmericanTRWCorporationrecentyearspromoted,it
