基于FPGA的雙自觸發(fā)脈沖激光測距關(guān)鍵技術(shù)研究.pdf

1、rl。7分類號——UDC——孝卞科技大署碩士學(xué)位論文丫778452密級——基于FPGA的雙自觸發(fā)脈沖激光測距關(guān)鍵技術(shù)研究學(xué)位申請人：王世峰學(xué)科專業(yè)：電子與通信工程指導(dǎo)教師：楊坤濤教授論文答辯日期ZQ鰱：壘：2墨一學(xué)位授予日期答辯委員會主席睦篷渲評閱人鄞墜萱2主坐鱟延室華中科技大學(xué)碩士學(xué)位論文ABSTRACTThelaserrangefmdingtechniquesiswidelyusedinsuchngreatdealoffieldsa

2、smodemindustryaviatiOilandearthineasuremelltnationaldefonceandcommunicationandSOonThethesisbasedonpulsedtimeofflightlaserrangefindingtechniquesthathasbeenalreadyusedextensivelyanalysesselftriggeringpulsedtimeofnightlaser

3、rangefinding(STPLR)thatWaSputtedforwardinrecentyears，especiallybi—selftriggeringpulsedtimeoffightlaserrangefinding(BSTPLR)，findsoneofitscorepartsishighaccuracyandhighspeedcountertomeasureflighttime(cycle)ofpulsedtimeoffi

4、ghtlaserrangefindingandthegeneralwaypresentlyistoadopttheexpensiveimposedhighspeedcounterortheapplicationspecificintegratedcircuit(ASIC)Itmakeslaserrangefindertoberestrictedonmanyrespectssuchasresearchinganddeveloping，th

5、esystematicupgradeandindependentintellectualpropertyprotectionAtthesarnetime，itswholefunctioncanbehindered，especiallyinholisticperformance，miniaturizationandhigIdependabilityTherefore，thistextstudieshowtoadoptfieldprogra

6、mmablegatearray(FPGA)torealizecountingatahigIspeedandhigllaccuracyandotherrelevantfunctionsSobasicallytheseproblemsexistabovehavebeenSOIvedThroughanalyzingthemaintechnicalrequirementsandindicatorsofBSTPLR，thethesisusesth

7、edesignformofFPGAmicrocontrollertoresearchthesignalprocessingunitFPGA(EPFl0K20TCl444)，私cyclemeasUremodule，isthecorepartofthedigitalsignalprocessingunitinthewholerangefmdingsystemBydintofitsprogrammablecharacteristicandhi

8、ghffequency，designsthehighspeedandhi曲一accuracycounterchipAndresponsibleforcountingthetimediscriminationcircuitoutputsignalThedataprocessingmoduleismainlyrealizedbythemicmcontroller(AT89C51)Bythewidthofthekeyboardpresetga

9、tingsignal，thesystemcanbalancethemeaSUreprecisionandspeedTheresultisdisplayedby7LEDThedesignbasicallymeetthedesigningrequirementsintherangeofclosequartersThethesisiscomposedofsevenchaptersChapteronemainlyintroducesthesou

10、rce，andsignificanceoftheproject，andexpoundstheactualityanddevelopmentofthefielddomesticallyandinternationallyChaptertwointroducestheprincipleofSTPLREspeciallydetailedanalyzestheBSTPLRanddiscussesthefeasibilityofBSTPLRwhi