Research Article

Determination of First Arrival Wave Type of Microseismic Signals and Approach to Wave Velocity Correction

Table 2

Delay time at different noise levels.

 0.10.20.51

10.040.040.0380.038
20.040.0420.040.04
30.040.040.040.05
40.040.040.0380.036
50.040.0420.040.042
60.040.0380.0360.04
70.040.040.0420.032
80.040.040.0440.028
90.040.0380.0420.046
100.040.0420.040.044