| 临床诊断心电信号波形参数拐点检测算法研究 |
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| 引用本文： | 李德华 宁新宝. 临床诊断心电信号波形参数拐点检测算法研究[J]. 南京师范大学学报, 2004, 4(2): 30-32 |
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| 作者姓名： | 李德华 宁新宝 |
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| 作者单位： | 南京大学,电子科学与工程系,江苏,南京,210093;南京大学,电子科学与工程系,江苏,南京,210093 |
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| 基金项目： | 江苏省自然科学基金资助项目 (BK2 0 0 0 0 14 ) |
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| 摘 要： | 心电信号临床诊断参数自动测量迄今为止没有一种方法能够达到手动测量的精度．在前人的基础上引入数字滤波器，改进算法，使精度提高，并且算法计算简单、快速．首先，数字滤波器将干扰基本滤除干净，使拐点容易定位，并且做到零相移，从而各拐点位置不变；其次，斜率采取多点平均，恰当地设置阈值，提高了抗干扰能力；并可根据各拐点附近波形不同的具体情况对算法做相应的调整．
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| 关 键 词： | RR间期 P波宽度 QRS波群宽度 QT间期离散度 心电信号 |
| 文章编号： | 1672-1292(2004)02-0030-03 |
| 修稿时间： | 2003-09-16 |
Algorithm for ECG Inflexions detection in Clinical diagnosis |
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| LI Dehua,NING Xinbao. Algorithm for ECG Inflexions detection in Clinical diagnosis[J]. Journal of Nanjing Nor Univ: Eng and Technol, 2004, 4(2): 30-32 |
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| Authors: | LI Dehua NING Xinbao |
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| Abstract: | An algorithm for ECG inflexions detection was improved with higher precision, simpler and faster calculation by introduction of a digital filter. Firstly, digital filter should have no phase displacement, so that each inflexion would not change its position; Secondly, the slope was an average of the slopes of several points in order to improve the ability of tolerating noises by a right threshold value; thirdly, the character of each inflexion was different, so the algorithm should be adjusted according to each inflexion. |
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| Keywords: | duration of PR interval of P Wave interval of QRS dispersion of QT Interval electrocardiogram |
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