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Advances in Civil Engineering
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Advances in Civil Engineering
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2019
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Article
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Tab 4
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Research Article
Accurate Method for Picking Up the First Arrival Time of Microseismic Signals Based on Entropy Theory
Table 4
Influence of parameter selection on error of the fractal method.
Window
T
20 ms
30 ms
40 ms
50 ms
60 ms
Picking error
1.9
0.7
0.3
0.3
0.9