Fig. 6From: Detection of low-frequency earthquakes by the matched filter technique using the product of mutual information and correlation coefficientScatter plots and relationship between the SN ratio of the waveform and the MI, CC, and MICC for the synthetic waveform with sinusoidal noise. The figures are as in Fig. 4, but here the noise is a sinusoidal wave of frequency 1.25 HzBack to article page