The effect of electrode configuration on spectral distance measures

The authors measured EMG signals of different motions with two electrode configurations simultaneously. Electrode pairs are located separately on dominant muscles (S-type) and closely in the region between muscles (C-type). The application of the cepstral method for C-type signals doesn´t achieve the same improvement as in S-type signals. The bandwidth of signal and the amplified noise in the high-frequency band (HFB) are assumed to be responsible for the above degradation. This study provides theoretical verification for the above explanation