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1、心电信号的处理与检测诊断算法的研究移动心电信号的处理与检测诊断算法的研究李坚强，何星龙，明仲(深圳人学计算机科学与软件学院,深圳)ResearchonAlgorithmofprocessinganddiagnosisMobileECGsignalLiJianqiang,HeXinglong,MingZhong(CollegeofComputerScieneoandSoftwareEngineering,ShenzhenUniversity,Shenzhen,518060,China)E-mail:lijq@szu
2、.eduAbstract:Accordingtostatistics,athirdofpeopledieofcardiovasculardiseaseeveryyear,ondvasculardiseaseisattopofthe1istofdiseasesthreattohumanhealth・ECG(e1ectrocardiogram)signalisthedirectandeffectivewaytofindcardiovasculardiseasetimely,anditcanintuitivelyref
3、lecttheheartbeatchangesoftheheartandtheactivitiesofdifferentparts-AadaptiveECGprocess,diagnosisalgorithmwhich1owcomputationslispresentedinthispaperforportableECGmonitor.ThealgorithmhastowpartsthatprocessingECGsignalanddiagnosisheartdisease・Firstly,aftertheECG
4、signalisreceivesd,becauseofECGsignalcontentnoise,ECGsignalisprocessedbysoftwarefilter.HRdigitalshapingfilterthatsuitableformobileplatformisputforward,andfilteroutbaselinedriftofmaininterferencefrequencybandand50Hzpowerfrequencyinterferenee.Itisalsoputforwarda
5、kindofHRandFIRcompositefilterthatcanbeself-adaptivewithdifferentenvironmentainoiseintensity・Secondly,thispaperthenuseddynamicdifferencethresholdvaluemethodtofindtheQRScomplex,andmadejudgmentforarrhythmiaaccordingtotheheartrateandthetimespanofQRSwave.Next,Pote
6、ntiallineoffsetrelativetoSTsegmentwasidentifiedby"J+X〃method,andSTdeviationdiagnosiswasmadeaccordingtothis.Finally,thispaperteststheperformaneeofECGfeaturepointsextractionalgorithm.thedatashowthattheerrorpointofQRSdetectionislessthan2in1minutes,theSTsegmentde
7、viationalgorithmcanadjustwiththechangeofheartrate,sotheportableECGmonitoriscorrectandstable.Keywords:ECG;integerHRfilter;adaptiveIIR+FIRcompositefilter;dynamicthresholdQRSdetection;J+X;arrhythmia;STsegmentdeviation摘要：据统计每年有三分之一的人死于心血管疾病，在威胁人类健康的疾病屮心血管疾病名列榜首。而
8、心电信号是及时发现心血管疾病的直接而有效的途径，通过它能直观的反应出心脏的心跳节拍变化和各部位的活动情况。木文主耍针对便携式心电监护仪提出一种计算复杂性低的自适应心电处理、诊断算法。首先，接收到心电信号后，曲于噪声与心电信号相互重叠需要进行软件滤波处理。本文实现了适介移动平台的整形IIR数字滤波器，滤除主耍干扰频段基线漂移及50HzI频干扰，并捉出一种随环境噪芮强度不同能
