双约束变换时窗统计能量比地震波初至拾取方法

时伟, 林春华, 王维红, 高云路

A first arrival pickup method of micro-seismic event based on statistic energy ratio using varied time window with double constraints

Wei SHI, Chun-Hua LIN, Wei-Hong WANG, Yun-Lu GAO

图6 加入实际背景噪声的人工合成地震记录及不同方法的拾取结果 a—加入实际背景噪声的人工合成地震记录;b—STA/LTA法拾取结果;c—变换时窗统计能量比法拾取结果;d—双约束变换时窗统计能量比法拾取结果

Fig.6 Synthetic seismic records with actual background noise and pick-up results from different methods a—synthetic seismic record with actual background noise added;b—STA/LTA method calculation result;c—conversion window statistical energy ratio calculation result;d—calculation result of conversion window energy ratio method based on statistical principle and double constraint