Detecting and Aligning ECG Peaks

2 次查看（过去 30 天）

sam van Bohemen 2020-1-8

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/499336-detecting-and-aligning-ecg-peaks

评论： sam van Bohemen 2020-1-8

I am recording ECG signals from 5 electrodes, resulting in 5 ECG traces (x,y,c,d,e)

I have been using the findpeaks function to detect the peaks in each trace. I have then been applying the rmoutliers function to detect and remove any outlier peaks that are more than 3 SD from the mean.

I am left with the location and value of the 'inlier' peaks in each trace, however the traces don't have the same number of peaks and the location of the peaks in each trace can vary by a few samples.

I am trying to write a script that allows me to align the 'inlier' peaks in each trace

Can anybody give me some guidance?

I have attached the matlab script I have been using to detect peaks and remove oultiers.

I have also attached the data file. Note when importing the data file to matlab, import columns C-G (These are the 5 ECG traces).

Thanks

Sam

2 个评论
显示无隐藏无

Ridwan Alam 2020-1-8

Can you share these variables?

sam van Bohemen 2020-1-8

If you import columns C-G of the data file I attached (numbers only, not including the headings) as a column vector then run the script I attached. 5 variables are created (xpeaks, ypeaks, cpeaks, dpeaks, epeaks). Each of these variables consists of three columns, the first being the location of the peak, the second being the value of the peak and the thrid recognises that it is an inlier.

请先登录，再进行评论。

请先登录，再回答此问题。