Study on seismic wavelet extrapolation method 地震子波外推方法研究
An extrapolation method for collocation solution of class of integral equation 一类积分方程配置解的外推
In explicit depth extrapolation method of frequency - space fields , wavefield depth extrapolation is completed with convolution of short explicit difference operators and the wavefield 摘要在频率空间域显式叠前深度偏移中,波场深度延拓是通过显式差分短算子与波场的空间褶积完成的。
Extrapolation method , composed of aitken extrapolation and eigenvalues - based algorithm mainly , can notably reduce iterations commonly . aitken extrapolation algorithm use aitken transform to reduce iterations Aitkenextrapolation算法使用aitken变换以减少迭代次数,但aitken变换在多数情况下无法确保算法收敛。
The results show that all the orders of the stress singularities at the interface edge can be determined precisely , and the related stress intenisity coefficients can also be determined by extrapolation method 计算结果表明,本方法可以精确地求得振荡应力奇异性次数,并且与奇异性对应的复应力强度系数也可以很方便地应用外插法得到。