CD-DVD抖動(dòng)儀校準(zhǔn)裝置的設(shè)計(jì)與實(shí)現(xiàn).pdf

1、代號(hào)分類導(dǎo)UDC10701學(xué)號(hào)壁壘笪2壘Q絲蘭密級(jí)——編號(hào)蚤簧絮爭(zhēng)麟校磊警工程碩士學(xué)位論文題(中＼英文)目星型!y旦撾麴絲撞鲞苤重盥遮i皇塞堡!b曼Q曼蘭!g翌旦衛(wèi)璺旦星旦!i三坌主i里旦魚!theCD／DVDJitiermeterCaIibrator作者姓名亟莖毯學(xué)校指導(dǎo)教師姓名職務(wù)圍逼煎攮工程領(lǐng)域叢置堡盎企業(yè)指導(dǎo)教師姓名職務(wù)吐掛壬塞級(jí)王猩咂提交論文日期2魚Q圭!Q旦旦AbstractAbstract5Thepaperdealsind

2、etailwiththesystemdesign，theperformanceanalysisandtheapplicationoftheCD／DVDJfftermeterCalibratorThecompletesetofinstrumentiscomposedofhardwareandsoftwareThecrucialpartofhardwareisthecircuitthatgeneratesstandardjittersign

3、al，HFpulsewidthmodulationThesoftwareconsistsofassemblelauguageprogramme，whichistokeepthehardwareundercontrol，andVisualBasicprogramme，whichistorealizetheselectionoffunctiontheparametersetting，thecalculationofcontroldataan

4、dtheRS232serialcommunicationThetechnicaldifficultywhichshouldbesettledinthestudyprocedure，istherealisationoftheHFhighprecisionPWMInthispaperitiscomplishedbyauniquemethodafterresearchingthenowadayPWMtechnicandinternalstru

5、ctureofthePWMchipsTogeneratetheCDjittersignal，aProgrammableDigitalPotentiometerWasusedtochangetheexternaltimerofHighSpeedCMOSPrecisionMonostableMultivibratorTogenerateDVDjittersignal，itwascomplishedbyDigitalProgrammableD

6、elayGeneratorDigitalPotentiometerandotherlogicalpartsT11iskindofdesignbrokethroughtheweaknessoftheexistingPWMtechnicwhichcanonlyworknormallyunderlowfrequencySimultaneouslythehighprecisionPWMwascarriedoutbycombiningtheacc

7、uracyofchipsthemselvesandtheamendmentofsoftwareThecalibratorisaprofessionalinstrmnentanditsoutputsignalCanfulfillthecalibrationofCD／DVDJittermeterComparedwimothersimilaroverseasproducttherearemanystrongpointsItsoutputsig

8、nalhaswiderangeofjitterandthejitterCanbeadjustedcontinuallyMoreovertheinstrumentoffersthreechoicesofjitterunitbasedondifferentusesBecausethereisnoanydomesticinstituteorcompanyandjustveryfewJapanesecompanywhichdevelopsand

9、producesthiskindofinstrumentwithhighprice，thesuccessfuldevelopmentofCD／DVDJittermeterCalibratorfilleduptheinternalvacancyofthisitem，andbrokethemonopolizationofdomesticcalibrationmarketoccupiedbyforeignequipments111eCD／DV