An Experiment Monitoring Signals of Coal Bed Simulation under Forced Vibration Conditions

Table 14

IMF component energy percentages of effective microseism signals by EEMD in working condition 29.

IMF component	Energy percentage (%)
IMF_h1	66.8
IMF_h2	15.6
IMF_h3	14.2
IMF_h4	2.88
IMF_h5	0.222
IMF_h6	0.115
IMF_h7	0.0434
IMF_h8	0.0249
IMF_h9	0.0356
IMF_h10	0.0218
IMF_h11	0.0113
IMF_h12	0.00279
IMF_h13	0.000226
IMF_h14	0.000126
IMF_h15	0.00023
IMF_h16	0.000115
IMF_h17	0.000104