资源描述:
《一种基于小波的眼伪影校正的脑电图去噪技术毕业论文外文翻译》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、拟建中的阜阳市中国XXXX国际服装城依托中国XX国际服装城,拟建成为皖西北地区规格最高、规模最大、商务及功能最优的现代化、国际化服装专业市场,建设规模占地约128亩,建筑面积约25万平方米,项目总投资约5亿元人民币。经过1--2年的开发建设,能达到正常运营期的中国XX.XX国际服装城将吸纳全国和世界各地的经销商、代理商企业物流总部等500—1000家,预计年交易额实现68亿元人民币,每年实现税收8000—10000万元人民币,每年实现利润1.68亿元人民币,实现就业和创业人员约2万以上。AWAVELETBASEDDE-NOISINGTECHNIQUEFOROCULARARTIFACTCORRE
2、CTIONOFTHEELECTROENCEPHALOGRAMTatjanaZikov,StéphaneBibian,GuyA.Dumont,MihaiHuzmezanDepartmentofElectricalandComputerEngineering,theUniversityofBritishColumbia,BC,CANADA.Abstract–Thispaperinvestigatesawaveletbaseddenoisingoftheelectroencephalogram(EEG)signaltocorrectforthepresenceoftheocularartifact(
3、OA).Theproposedtechniqueisbasedonanover-completewaveletexpansionoftheEEGasfollows:i)astationarywavelettransform(SWT)isappliedtothecorruptedEEG;ii)thethresholdingofthecoefficientsinthelowerfrequencybandsisperformed;iii)thede-noisedsignalisreconstructed.Thispaperdemonstratesthepotentialoftheproposedte
4、chniqueforsuccessfulOAcorrection.Theadvantageoverconventionalmethodsisthatthereisnoneedfortherecordingoftheelectrooculogram(EOG)signalitself.Theapproachworksbothforeyeblinksandeyemovements.Hence,thereisnoneedtodiscriminatebetweendifferentartifacts.Toallowforapropercomparison,thecontaminatedEEGsignal
5、saswellasthecorrectedsignalsarepresentedtogetherwiththeircorrespondingpowerspectra.Keywords-stationarywavelettransform(SWT),electroencephalogram(EEG),electrooculogram(EOG),ocularartifact(OA).I.INTRODUCTIONTheelectroencephalogram(EEG)givesresearchersanon-invasiveinsightintotheintricacyofthehumanbrain
6、.Itisavaluabletoolforcliniciansinnumerousapplications,fromthediagnosisofneurologicaldisorders,totheclinicalmonitoringofdepthofanesthesia.Forawakehealthysubject,normalEEGamplitudeisintheorderof20-50μV.TheEEGisverysusceptibletovariousartifacts,causingproblemsforanalysisandinterpretation.Incurrentdataa
7、cquisition,eyemovementandblinkrelatedartifactsareoftendominantoverotherelectrophysiologicalcontaminatingsignals(e.g.heartandmuscleactivity,headandbodymovements),aswellasexternalinterferencesduetopower