数字仪与模拟仪地震处理的对比分析及近震走时表的修改

COMPARISON OF DIGITAL AND ANALOGOUS SEISMIC INSTRUMENTS AND MODIFICATION OF LOCAL EARTHQUAKE TRAVEL-TIME TABLE

利用都兰地震台数字地震仪记录资料 ,在地震处理中使用修改后的走时表 ,可以实现从模拟到数字的顺利过渡 ,更好的使用数字化仪器进行地震观测。通过传递函数仿真计算震级的对比以及走时表修改后与修改前震中距的对比分析 ,找出了两者的差异和结合点。

Modified travel-time table is used in seismic data processing by the records of digital instrument at Dulan station in order to realize digitization from analog.The difference and combination between them are found by compared emulational calculated the earthquake magnitude and analysed the epicentral distances before and after modified the travel-time table.