一种简易快速的时域地震波衰减补偿算法

A simple and Fast Algorithm that Attenuation of Seismic Wave Amplitudes Can Be Compensated in Time Domain

针对地震波的能量随着传播时间的增加而递减,提出了一种时间补偿方法。通过调试与传播时间有关的两个可调参数进行地震波振幅补偿。模型试验证实了该方法可以有效地补偿能量的损失,而且在地层中地震波振幅衰减与品质因子Q值有关时,其中的一个可调参数可以用另一个可调参数和Q值来表示。也就是说,本文方法同样是一种反Q滤波方法。

On account of the fact that seismic wave energy reduces as the propagation time increases,the authors present a time compensation method.Through debugging the two adjustable parameters which have some connection with the propagation time,seismic wave amplitudes can be compensated.Model experiments confirm that this approach can effectively compensate for the loss of energies,but also in the formations wave attenuations are in connection with the values of quality factor Q,one adjustable parameter can be represented by using the other one and the value of Q.In other words,this approach is also a kind of inverse Q filtering method.