The vertical seismic profile (VSP) considerably aids attenuation analysis and velocity
calibration, enabling high-resolution seismic exploration. However, the imaging and …

Efficient numerical simulation of seismic wavefields generally involves truncating the Earth
model in order to keep computing time and memory requirements down. Absorbing …

In seismic full waveform inversion (FWI), the shot-encoding technique can reduce
computational costs. It randomly encodes all individual shot gathers and combines them into …

Seismic numerical modelling involved in each stage of seismic exploration process is aimed
at predicting seismograms in an assumed subsurface medium. The energies and phases of …

For shot-encoded seismic waveform tomography, the restarted limited-memory BFGS (L-
BFGS) algorithm is an effective technique to suppress the crosstalk effect among encoded …

Hot dry rock is generally buried deep within the subsurface and exhibits high temperatures,
hardness and density, with low porosity and a lack of permeable fluids. It is thus difficult to …

ABSTRACT P-wave extrapolation in anisotropic media suffers from SV-wave artifacts and
computational dependency on the complexity of anisotropy. The anisotropic …

Seismic waveform tomography can invert for the velocity and attenuation (Q− 1) variations
simultaneously. For this simultaneous inversion, we propose two strategies for waveform …

传统的波动方程走时核函数(或走时Fréchet 导数) 多基于互相关时差测量方式及地震波场的一阶
Born 近似导出, 其成立条件非常苛刻. 然而, 地震波走时与大尺度的速度结构具有良好的线性 …

Seismic full waveform inversion (FWI) is a powerful technology to obtain high-precision and
high-resolution images of subsurface structures. However, FWI is a data-intensive algorithm …