【摘要】 地震资料处理中常会遇到重叠地震信号,而如何将这些重叠数据分离开,是一个有待研究的课题。论文利用小波包同时在频域和时域具有良好的局部化性质,采用Shannon熵标准来选取最优小波包基,确定了重叠爆破的延迟时间,从而成功地对重叠地震信号进行了分离。更多还原

【Abstract】 The overlapped earthquake signals often appear in seismic data processi ng .It is a demanding task to separate the overlapped earthquake datum.Based on t he good localizing quality of wavelet packages in frequency region and time reg ion at the same time ,this paper selects the best basis in wavelet packages by using Shannon entropy criterion,and finds the delay time of the overlapped ea rthquake signals,and so separates them successfully.更多还原