地震信号中长周期随机干扰的消除方法

Research on Technology of Removing the Long Disturbance in the Digital Seismic Signals

本文主要提出两种消除数字地震信号中长周期随机干扰的方法:窄带低通滤波对消法和自适应高通滤波法。通过使用多级抽点技术大大减少滤波法的运算量,可获得良好的滤波特性。最后对两种方法进行了对比讨论并给出了实验结果。

Two methods with which the long disturbance is removed from the digital are introduced: narrow band low - pass filtering canceling method and adaptive high - pass filtering method. With many grades decimating technique, the calculations may be reduced greatly and the property improved.