Movement noise detection and cancellation algorithm using multiplexing signal receiving

In determining the motion artifact removal and method using the multiple signals received to eliminate the problem due to high frequency noise and motion artifact occurring in the PPG signal measured one of the bio-signal, measuring a PPG signal through the multiple channels; Generating a signal to remove high frequency noise from the measured PPG signal; Setting a reference signal in the signal to remove the high frequency noise; Correcting the difference between the multiplexed by applying a cross correlation technique to remove the motion artifact signal from the multi-channel PPG signal based on the reference signal; The step of selecting a baseband signal on the basis of the preset reference signal; The method comprising a wavelet transform using the baseband signal; And a step of determining and removing the motion artifact using the wavelet transform values.