地震地磁观测与研究2017，Vol.38Issue(3)：13-17,5.DOI:10.3969/j.issn.1003-3246.2017.03.003
STA/LTA—AIC算法对地震P波震相拾取稳定性影响
Influence of the STA/LTA—AIC algorithm on the stability of P-wave pickups
摘要
Abstract
The first P arrivals of the selected earthquakes are picked automatically from the regional waveform data by using both STA/LTA and STA/LTA—AIC algorithms. In this paper, the effect of the P-phase picks of the local and distant events is analyzed. It is concluded that the arrival times of the first P phases picked with the STA/LTA method are of high precision, and differ slightly from the ones with the STA/LTA—AIC; When the epicenters become more distant, the P arrivals picked with the STA/LTA are delayed from the best positions, which will be corrected effectively by the STA/LTA—AIC algorithm, thus the differences between the corrected positions and the manual results are negligible.关键词
STA/LTA—AIC算法/P波拾取/震相自动识别Key words
STA/LTA—AIC algorithm/P-wave pickup/automatic seismic phase identification引用本文复制引用
郭铁龙,张雪梅,邹立晔..STA/LTA—AIC算法对地震P波震相拾取稳定性影响[J].地震地磁观测与研究,2017,38(3):13-17,5.基金项目
中国地震台网中心地震台网部日常运维(项目编号:1650301320105) （项目编号:1650301320105）
