Key Laboratory of Underground Information Detection Technique and Instrument of Ministry of Education, China University of Geosciences; Beijing 100083, China
Based on seismic attributes of the time window, the authors studied the methods of first arrival wave pickup by using energy ratio. A comparison was made in theory and application effects of statistical energy ratios between such means as solid, rolling and changing time windows. The results show that the effects of solid and rolling time windows are relatively poor, with considerable errors existent in the process of picking some special points. When the transform length of the time window statistical method is employed, the event of the first arrival curve becomes more smooth, and the abnormal points are greatly reduced, thus effectively improving the pickup accuracy.
张伟 王彦春 段云卿 谭昌勇 王连山. 用变换时窗统计能量比法拾取地震初至波[J]. 物探与化探, 2009, 33(2): 178-180.
ZHANG Wei, WANG Yan-Chun, DUAN Yun-Qing, TAN Chang-Yong, WANG Lian-Shan. THE APPLICATION OF STATISTIC ENERGY RATIO OF TRANSFORM TIME WINDOWS TO THE PICKUP OF SEISMIC FIRST ARRIVAL WAVE. Geophysical and Geochemical Exploration, 2009, 33(2): 178-180.