Figure 7 | Scientific Reports

Figure 7

From: Unveiling the signals from extremely noisy microseismic data for high-resolution hydraulic fracturing monitoring

Figure 7

Comparison of time-frequency spectrums of (a) clean data, (b) noisy data, (c) orthogonalized morphological reconstruction, (d) conventional morphological reconstruction, (e) filtered data (10–20–180–190 Hz), (f) filtered data (70–80–120–130 Hz), (g) filtered data (60–70–170–180 Hz) of the second synthetic example.

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