extrapolation operator

基本解釋

We improved FFD extrapolation operator to compensate the amplitude difference generated by geometry diffusion loss.
通過(guò)改進(jìn)傅立葉有限差分的延拓算子，補(bǔ)償了幾何擴(kuò)散損失引起的振幅誤差。
Starting from the decomposition of wave equation extrapolation operator in 3-D non-uniform medium, the paper gained one-way wave-equation used for true amplitude migration;
本文從三維不均勻介質(zhì)中的波動(dòng)方程外推算子分解出發(fā)，得到了用於真振幅偏移的單程波方程；
Af-x Explicit migration is carried out through spatial convolution of finite-length extrapolation operator with frequency slice, which is concise, high efficient, and easy to extend from 2D to 3D.
頻率空間域顯式偏移利用有限長(zhǎng)度的褶積算子，通過(guò)對(duì)不同的頻率進(jìn)行空間褶積來(lái)實(shí)現(xiàn)偏移成像，且具有簡(jiǎn)潔、高傚、便於擴(kuò)展等特點(diǎn)。