探测制导与控制技术专业基于arm与线性ccd的高速数据采集系统毕业论文外文文献翻译及原文

《探测制导与控制技术专业基于arm与线性ccd的高速数据采集系统毕业论文外文文献翻译及原文》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、毕业设计（论文）外文文献翻译文献、资料中文题目：基于ARM与线性CCD的高速数据采集系统文献、资料英文题目：文献、资料来源：文献、资料发表（出版）日期：院（部）：专业：探测制导与控制技术专业班级：姓名：学号：指导教师：翻译日期：2017.02.14High-SpeedDataAcquisitionSystemBasedonARM&Linear-CCDDongJianjunZhaoXiaojinDept.Four，TheFirstAeronauticalTechnicalCollegeoftheAirForceXinyang464000.China.Abstract:Thisp

2、aperpresentsahighspeedacquisitionsystemoflinear-CCDbasedonARM,high-speedlinear-CCDandhigh-speedADCareselected.AsthesamplingspeedofA/DisslowerthantheworkingclockfrequencyofARM,CPLDandFIFOareusedasI/ObetweenA/DandARM.Itmakesthecircuitworksharmonious，simpleandeasycontrolling，andalsoincreasesth

3、eefficiencyofARM.Inordertoincreasethecommunicationspeed,theUniversalSerialBus(USB)technologyisadoptedtocommunicatewiththePC.ARMisthekeyprocessorutilizedtocontrolthedatasampling,datacomputeanddatatransfer.Asaresult，thewholesystemworkseffective.Thesystemcanbeappliedtothehighspeeddataacquisiti

4、onandoperationsituationsfrommulti-channelanalogsignals.KeyWords:ARM;LinearCCD;Contact-line;Pantograph;Stagger-valueLIntroductionInelectrificationrailways，inordertoextendthelifeofthepantographonelectriclocomotives，sothatthesliderofpantographwearevenly，thecontact-line(electrifiedrailwaypowerf

5、eedline)instraight-linesegmentsisarrangedaszigzagroute(curvesectionarrangedintheformofpolyline).Thedistancebetweenthecontact-lineofpositioningpointandthepantographcenterlinetrackiscalledoutstagger-value，whichisakeyindicatorofcontact-line.Stagger-valuecannotbeignored，thevaluetoosmallwillaffe

6、ctthesliderofpantographwearevenlyandthepurposeofextendingusinglife;otherwise，insomecases(suchascaughtinastiffwinds)，causealargerangeoflateralmovementoftheroof(andthehigherthespeed，thegreaterpantographswingaround),somepartsofcontact-linewillbeinexcessoftheeffectiveworklengthofpantograph，soth

7、atthestagger-valueofcontact-linebeyondthestandardrange，leadingtodeteriorationofthecurrentcollection,andevencauseincorrectrunningofthepantographaccident.Pantograph-catenarymalfunctionwillresultininterruptionoftrainoperation,whichimpactonrailtransportserio