【摘要】 地震P波波列中地表反射波pP或sP震相的准确识别,对地震震源深度的精确测定具有重要作用.基于新疆和田地震台阵部分地震记录数据,利用F检测算法对震中距分别为22.1°,6.44°和39.62°的3次地震事件进行了地表反射波pP或sP震相检测.结果表明,应用F检测分析新疆和田小孔径地震台阵数据,可以帮助分析人员识别地震的地表反射波pP或sP震相.为进一步验证F检测算法对识别地表反射波震相的有效性,本文对震中距为22.1°的地震事件波形叠加不同水平噪声后,再进行F检测,结果仍能检测出其地表反射波震相.更多还原

【Abstract】 Accurate identification of reflected wave phase pP or sP is of great importance in precise determination of focal depth.Using seismic wave data recorded by Hotan,Xinjiang,seismic array,we apply F-detection algorithm to identify pP or sP phase on P-wave seismograms of 3 earthquakes,of which the epicentral distances are 22.1°,6.44° and 39.62°,respectively.The study result indicates that the F-detection algorithm is helpful in relatively accurate identification of pP or sP phase.To verify the validity of F-detection algorithm,we use it to analyze the wave data of central distance 22.1° event with additional different level noises.The result indicates that pP or sP phase can still be identified.更多还原