Remove sinc-like spikes from EMG signal

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Lok Yiu To
Lok Yiu To 2017-8-10
评论： Dev Verma 2022-9-27
Hi,
I am working on long-term EMG signal and I found that lots of my signal has noises that look like a sinc function. I am wondering whether there are existing methods/functions that can recognize/locate this sinc function. This sinc functions vary in time length and magnitude. The attached picture shows the sinc-like spike. If I can locate them, I can remove them and interpolate the missing data.

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Dev Verma
Dev Verma 2022-9-27
I don't know the exact method to do this but I found this while reading a paper on Silent Speech Detection using EMG.
Maybe this would help. Do respond if it does. I might need to do something similar
  1 个评论
Dev Verma
Dev Verma 2022-9-27
We perform soft de-spiking to remove very large values by feeding the input through a scaled tanh function (v.tanh x/y) with the maximum scale v set to 1 mV.

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