A Nonparametric Method for Automatic Denoising of Microseismic Data

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/sv/volume-2018/4367201/figures/4367201.fig.005a.svgz" name="4367201.fig.005a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Comparison between actual P-arrival and P-arrival picked by STA/LTA on noisy microseismic signal</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/sv/volume-2018/4367201/figures/4367201.fig.005b.svgz" name="4367201.fig.005b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Zoomed windows of (a) around P-arrival</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/sv/volume-2018/4367201/figures/4367201.fig.005c.svgz" name="4367201.fig.005c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>P-arrival picked by STA/LTA on microseismic signal denoised by PD method</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/sv/volume-2018/4367201/figures/4367201.fig.005d.svgz" name="4367201.fig.005d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Zoomed windows of (c) around P-arrival</td></tr></table>

<div>Different P-wave autopicking result before and after PD denoising.</div>

Shock and Vibration

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Figure 5

Figure 5: A Nonparametric Method for Automatic Denoising of Microseismic Data 