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Fig. 2 | Earth, Planets and Space

Fig. 2

From: Temporal change in seismic wave attenuation using highly stable vibration sources

Fig. 2

Result of the performance test. Amplitudes estimated using our method and the envelope calculation are shown by the dots in the left and right panels, respectively. Horizontal axes indicate the amplitude of noise relative to the root mean square of the signal. Vertical axes indicate the amplitude estimated with each method. The bold line shows the average of the calculation for each noise amplitude. The gray dashed line in the left panel indicates 95% confidence intervals, which are theoretically estimated from the noise amplitude

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