摘要
如何提取准确可靠的频散曲线是瑞雷波勘探技术关键问题之一。互相关法是众多提取方法中一种行之有效的方法。对瑞雷波数据处理中互相关法应用的基本原理与应用效果做了深入分析,通过使用滤波和相关系数阀值等措施加强数据质量约束,最终得到频散曲线。利用该方法对一个实际水闸口模型进行计算,应用效果良好。结论表明在野外条件较好的情况下,该方法可提高横向分辨率和经济效率。
How to extract the accurate and reliable frequency disperse curve is one of the key issues for Rayleigh wave exploration technology. The cross--correlation method is an effective one in many methods. The analysis and application of crosscorrelation method, which is used in Rayleigh wave data processing, are described in this paper. The quality of data can be enhanced through utilizing filtering and correlation coefficient threshold. As a in this method, it achieved fairly good effect. Results show that it can improve the horizon tal resolution and economic efficiency in good field conditions.
出处
《工程地球物理学报》
2009年第5期571-574,共4页
Chinese Journal of Engineering Geophysics
关键词
简谐波
相速度
群速度
频散特征
互相关法
simple harmonic
phase velocity
group velocity
frequency-- scattering charac ter
cross-- correlation analysis
