Research Article
A Multistep Method for Automatic Determination and Optimization of Microseismic P-Phase Arrival Times in a Coal Mine
Table 3
Result of first arrival times.
| | Channel number | Distance of station and cluster A | Cluster number |
| | 1 | 0.0020 | 1 | | 2 | 0.0018 | 1 | | 3 | 0.0032 | 1 | | 4 | 0.2110 | 1 | | 5 | 0.0064 | 1 | | 6 | 7.67 × 10–4 | 1 | | 7 | 0.0064 | 1 | | 8 | 7.57 × 10–5 | 1 | | 9 | 0.0042 | 1 | | 10 | 0.2891 | 2 | | 11 | 0.0044 | 1 | | 12 | 0.2891 | 2 |
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