浅谈408UL仪器回放因素的设置

Brief talk about setting of playback factors of 408UL seismograph

本文通过对陆地地震数据记录实例的分析,给出了408UL在时间指数、归一化和自动增益控制三种回放方式下,如何选取合理的回放因素,从而使地震数据的回放能更加突出有效波、提高信噪比。同时,给出了回放因素取舍的理论依据。

Through analyzing the case of a land seismic record, the paper gave how to select reasonable playback factors for three playback ways： time exponent, normalization and AGC, making the playback of seismic data highlight the waves of interest and improve S/N ratio; at the same time, gave theoretical basis of the choice of playback factors.