Comparison of STA/LTA P-pickers for micro seismic monitoring

This paper introduces the STA/LTA algorithm to deal with the data obtained by the HZ-MS48 micro seismic monitoring acquisition instrument.To identify micro seismic events P-wave arrives,we compared the results of picking precision on the different STA (short-time window on average) cases.The results show that the STA/ LTA algorithm determines the high signal-to-noise ratio (SNR) micro seismic events very effectively.The sensitive degree of picking P wave is different in the cases of using different short-time windows.The greater value of short-time windows,the lower sensitivity and accuracy.The triggering threshold should decrease with the increase of short-time window.