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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 dispersion curve is one of the key problems of Rayleigh wave exploration technology. Cross-correlation method is one of the most effective method of extraction. The basic principles and application effects of cross-correlation method in Rayleigh data processing are analyzed in depth, and the data quality constraints are enhanced by using filtering and correlation coefficient threshold to finally obtain the dispersion curve. Using this method to calculate a real sluice port model, the application effect is good. The conclusion shows that this method can improve the lateral resolution and economic efficiency under the condition of good field conditions.