Surface waves are widely used in near-surface geophysics and provide a noninvasive way
to determine near-surface structures. By extracting and inverting dispersion curves to obtain …

Conventional imaging algorithms assume single scattering and therefore cannot image
multiply scattered waves correctly. The multiply scattered events in the data are imaged at …

Seismologists have to deal with overlapping and noisy signals. Techniques such as source
separation can be used to solve this problem. Over the past few decades, signal processing …

Time reversal techniques are used in ocean acoustics, medical imaging, seismology, and
non-destructive evaluation to backpropagate recorded signals to the source of origin. We …

If energy emitted by a seismic source such as an earthquake is recorded on a suitable
backbone array of seismometers, source‐receiver interferometry (SRI) is a method that …

The ultrasonic echo technique is broadly applied in non‐destructive testing (NDT) of
concrete structures involving tasks such as measuring thickness, determining geometry and …

Teotihuacan is one of the largest pre-Hispanic cities established in central Mexico. Caves
and tunnels have been previously found underneath two important edifices: the Sun and …

Marine seismic reflection surveys generate high amplitude impulsive acoustic events using
airgun arrays to study geophysical characteristics of the seabed. These data can be used …

邵广周, 独婷, 吴华. 基于自适应震源子波提取与校正的瑞利波波形反演. 石油地球物理勘探,
2022, 57 (4): 838-846. DOI: 10.13810/j. cnki. issn. 1000-7210.2022. 04.010.SHAO …

Directional wave speeds variations in anisotropic elastic solids enables material
characterisation capabilities, such as determination of elastic constants and volumetric …