地震信号中长周期随机干扰抑制技术的研究

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

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 c 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 may improve.