根据复数道地震数据(?)定区域相速度Tim Ellis Scheuer 等本文提出一种利用复数道分析的概念进行区域相速度自动估计的新方法.将复数道分析扩展到高维,我们可以从实数地震记录得到复数地震记录。确定恒相轨线后,可从复数地震数据估计出相速度.在二维情况下,相速度计算简化为瞬时频率和瞬时波数之比的计算,因此,我们可给出地震记录的每一点的平面波主分量。本算法易于实现,计算量小,它们部分归功于一种新的瞬时频率和波数计算方法,该方法使二维和三维复数道记录的计算大为简化.本算法的优点在于无需事先给出速度输入 Tim Ellis Scheuer et al. Proposed a new method for the automatic estimation of regional phase velocities using the concept of complex tract analysis. Extending the complex tract analysis to high dimensions, we can derive from the real earthquakes Record the complex seismic records. Once the constant-phase trajectories have been determined, the phase velocities can be estimated from complex seismic data. In two-dimensional case, the phase velocity calculations are reduced to the calculation of the ratio between the instantaneous frequency and the instantaneous wavenumber, so we can give each point of the seismic record The main component of the plane wave. The algorithm is easy to implement and has a small amount of computation, which is attributed in part to a new method of instantaneous frequency and wave number calculation, which greatly simplifies the computation of two- and three-dimensional complex channel records. The advantage of this algorithm is that it does not need to give the speed enter