【心室晚电位处理方法及检测系统的研究】吴水才.pdf

RESEARCHONPROCESSINGMETHODS ANDDETECTIONSYSTEMFOR VENTRICULARLATEPOTENTIALS By Wu Shuicai SupervisedbyProf.LinJiarui ADissertation SubmittedtotheDegreeEvaluationCommitteeof HuazhongUniversity of Science andTechnology FortheDegreeofDoctorMedicine InBiomedical Engineering March,2000 InstituteofBiomedi

华中理工大学博士学位论文素,实现计算机的自动检测,提高检测准确率,对自适应滤波后的心电信号进行小波变换,从时频能量分布中提取8个VLP特征参数送入人工神经网络进行诊断,结果表明:这种方法可实现VLP的计算机单搏检测。我们对23例经时域法检测后的心电信号进行了单搏检测,其结果与时域法检测结果符合率达78 .基于上述VLP处理方法的研究,我们设计并研制出新型VLP检测系统。该系统由心电信号放大器、A/D转换器、微型计算机和打印机组成。系统软件是基于Windows98中文操作系统环境,用VisualBasic6。

华中理工大学博士学位论文 nda time-sequence adaptive filter are studiedrespectively.Theresults show that the quence adaptivefilter is super to adaptive line-enhancement filter in improving the fto-noiseratioofVLP,andVLP canbevisually beat-to-beat recognizedfrom the stable puet of the time-sequence adaptivefilter