摘要
本文简单介绍了地震仪采集通道的组成及功能,并以System Four和408 UL仪器为例详细分析了模拟滤波器、数字滤波器的特性及其对地震采集数据的影响——相同仪器的不同类型滤波器的特性不同;不同仪器的相同类型滤波器的特性也不同,因此它们对数据造成的失真也不相同。最后得出针对地震仪滤波器特性在地震数据采集和处理方面应该注意的一些问题。
The paper briefly introduced the composition and function of acquisition channel,and the function and advantages of analog filter and digital filter in seismograph;analyzed in detail the character of analog filter and digital filter in System Four and 408UL seismograph and their influence on seismic acquisition data;and finally got some opinions and suggestions on that the characters of filter in seismograph should pay attention to in seismic data acquisition and processing aspects.
引文
1 Sercel公司.408 UL User′s manual.2003
2 I/O公司.System Four technical manual.2002
3高晋占.微弱信号检测.清华大学出版社,2004
4侯正信.数字信号处理基础.电子工业出版社,2002