高效地震波场正演模拟对于复杂模型中地震波传播与成像研究至关重要. 本文在谱元法原理框架
内, 对已有逐元谱元法改进, 提出一种新的逐元并行谱元法求解三维地震波运动方程 …

Least-squares reverse time migration (LSRTM) can provide higher quality images than
conventional reverse time migration, which is helpful to image simultaneous-source data …

Reverse-time migration (RTM) has the particular capacity for complex geological structure
imaging. However, massive storage and high computational costs caused by conventional …

The advanced seismic imaging technology is reverse-time migration (RTM), which
generates Earth's structural image by cross-correlating the forward-propagated source …

High-efficient seismic wave forward modeling is important for the investigation of seismic
wave phenomenon in complex media and the imaging of subsurface structures of the Earth …

Reverse time migration and full waveform inversion involve the crosscorrelation of two
wavefields, propagated in the forward-and reverse-time directions, respectively. As a result …

Reverse time migration (RTM) in attenuating media should take absorption and dispersion
effects into consideration. The latest proposed viscoacoustic wave equation with decoupled …

Wavefield injection in finite-difference (FD) grids can be described by the method of multiple
point sources. The method teaches how synthetically generated wavefields and wavefield …

We have developed a new scheme with high accuracy and parsimonious memory
requirements to reconstruct the source wavefield in reverse time migration (RTM). This …

Reverse time migration (RTM) generally uses the zero-lag crosscorrelation imaging
condition, requiring the source and receiver wavefields to be known at the same time step …