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 一類積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 摘要在頻率空間域顯式疊前深度偏移中,波場深度延拓是通過顯式差分短算子與波場的空間褶積完成的。
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變換以減少迭代次數,但aitken變換在多數情況下無法確保算法收斂。
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 計算結果表明,本方法可以精確地求得振蕩應力奇異性次數,并且與奇異性對應的復應力強度系數也可以很方便地應用外插法得到。