Fig. 3From: Detection of low-frequency earthquakes by the matched filter technique using the product of mutual information and correlation coefficientMI, CC, and MICC for a signal comprising the template waveform with added Gaussian noise. The indices are calculated for each time step with the moving time window. The SN ratios are (a) 0.2, (b) 0.5, and (c) 1.0. Red dots show the index corresponding to the template signalBack to article page