摘要
在信号分析中 ,有一类强相关干扰在频率上与有效信号相近 ,能量比有效信号更强 ,通常所用的频率滤波等方法都难以消除干扰。作者在本文中针对这种强相关干扰的特点提出了一种自动追踪消除法 ,即首先自动追踪相关干扰的方向 ,然后恢复其能量 ,再从实际获取的信号中减去相关干扰能量 ,即可得到所需的有效信号的能量。该方法在几个石油勘探地区的二维和三维地震资料中进行了应用 ,并获得了成功。
In the signal analysis, there is a kind of correlation interference, of which frequency is close to the available signals and its energy is stronger than them. It is quite difficult to eliminate this kind of correlation interference by common method such as frequency filtering. In this paper, author presents an automatic tracing method to solve the problem. First the direction of the correlation interference is automatically traced and its energy is recovered. Then the interference is deducted from the practical measured signals to obtain the energy of the signals. This method has been successfully applied in 2-dimension and 3-dimension seismic data processing in several oil fields. One of examples is given in the paper.
出处
《物探化探计算技术》
CAS
CSCD
2001年第3期210-214,共5页
Computing Techniques For Geophysical and Geochemical Exploration
