摘要分波型或时空局部特征波场的层析成像与叠前深度偏移成像组合是全波形反演成像方法(
FWI) 实用化的途径之一. 其中如何高效稳健地获得具有时空局部特征的地震数据目前仍然是 …

Wavefield or seismic data are special data sets. They cannot fill the 4-D space-time in
arbitrary ways. The time-space distributions must observe causality which is dictated by the …

We present a data recovery scheme in Dreamlet (Drumbeat-Beamlet, which is a type of
physical wavelet) domain based on the concept of compressive sensing. The data are …

We present a Gaussian packet migration method based on Gabor frame decomposition and
asymptotic propagation of Gaussian packets. A Gaussian packet has both Gaussian‐shaped …

An approach to depth migration, based on an integral representation of seismic data, that is,
wavefields recorded on the boundary, is presented in terms of Poincaré wavelets. Each …

提出了一种在时间和空间上完全局域化的波场分解和传播算法─ dreamlet 偏移方法. Dreamlet
是一种脉冲-小波束形式的波场分解原子, 它利用多维局部分解变换, 把时空域波场映射到局部 …

为达到更加有效地表示地震数据的目的, 仅仅将地震数据当作普通的图像数据处理是远远不够的
, 地震数据中蕴含的地震波的运动学特性也应作为重要因素而被考虑到. 本文讨论了利用 …

The combination of wave-mode-based or spatiotemporally local-characteristic-wavefield-
based tomography and prestack depth migration is one of the ways to apply full waveform …

In this paper we discuss an efficient way to apply Gaussian Packet method to data
representation and seismic imaging. Similar to Gaussian Beam method, wavefield radiating …

Dreamlet 偏移成像目的是探索一类能够对地震波场和单程波传播算子同时分解和压缩的理论和
方法, 也即实现在压缩域的传播与成像. 地震数据在时间和空间的非平稳性质 …