由于波动方程基准面校正方法要求建立精确的表层速度模型和运用共炮点道集交替延拓,计算效率较低。为此本文在Alkhalifah1等提出的TDO基准面校正方法基础上进行研究,并将此法和波动方程基准面校正方法进行了对比,认为TDO的处理过程是一个样点对样点的映射过程,不是一个波场变换的过程,能同时将炮点和检波点延拓到基准面上。理论模型和实际数据测试结果均表明该方法是非常有效。
Since wave-equation datum correction demands on building precise near-surface velocity model and using common-shot point gather for alternative continuation, which has lower computational efficiency, for that reason, the paper carried out the study on the basis of TDO (Tomographic Datuming Operator) datum correlation presented by Mr. Alkhalifahl et al correlated the method with wave-equation datum correction, considering that the TDO processing procedure is sample-to-sample mapping process and isn t the pro...