摘要
A real time algorithm is presented here to recognize and analyze 8 channel simultaneous electro cardiograph(ECG). The algorithm transforms 8 channel simultaneous ECG into three orthogonal vectors and spatial velocity first, then forms the spatial velocity sample, and uses this spatial velocity sample to recognize each beat. The algorithm computes the averaged parameters by using averaged spatial velocity and the averaged ECG and the current parameters by using the current beat period and current width of QRS. The algorithm can recognize P, QRS and T onsets and ends of simultaneous 12 lead ECG precisely, and some arrhythmias such as premature ventricular beat, ventricular escape beat, R on T, bigeminy, trigeminy. The algorithm software works well on a real 8 channel ECG system and meets the demands of designing.
为解决 8通道同步心电的识别和分析问题 ,提出一种实时处理的算法 .先将 8通道同步心电进行正交化处理并形成空间速率 ,然后再形成空间速率样本 .用空间速率样本识别各个心动周期 ,用平均空间速率和平均心电图(ECG)计算平均参数 ,用瞬时参数心动周期和瞬时QRS波群的宽度等参数分析异常心律 .本算法能准确地识别 12导同步心电的P、QRS、T波起点和终点 ,并能较好地识别早博、漏博、RonT、二联律、三联律等异常心律 .使用本算法编制软件在 8通道同步心电仪上工作良好 ,达到了设计要求 .
