Automatic decomposition method of arrayed semg signal
An automatic decomposition and array technology, applied in the fields of medical science, sensors, diagnostic recording/measurement, etc., can solve the problems such as the inability to achieve the decomposition effect of the plug-in EMG signal, the strong variability of the MUAP waveform, and the unsatisfactory effect. Decomposition accuracy, reduced computation time, and convenient effects
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[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings, and those skilled in the art can easily realize the content disclosed in this specification.
[0029] Such as figure 1 Shown is a flow chart of the present invention.
[0030] Step 1: Array sEMG signal preprocessing: filter the sEMG signal to eliminate interference. Since the sEMG signal contains various interference signals, the preprocessing first needs to use a band-pass filter to retain the 10Hz--500Hz frequency band signal, and then use a notch filter to filter out the 50Hz power frequency interference.
[0031] Step 2: Calculate the initial delivery sequence vector: use the correlation of the signals of each channel of the array sEMG signal to calculate the initial delivery sequence vector as the initial value for extraction. The specific process is as follows: firstly calculate the cross-correlation matrix of the array sEMG signal and the inverse matri...
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