Low-frequency (LF) signal content in seismic data as well as a realistic initial model are key ingredients for robust and efficient full-waveform inversions (FWIs). However, acquiring LF …
For surface microseismic monitoring, determination of the P‐wave first‐motion polarity is important because (1) it has been widely used to determine focal mechanisms and (2) the …
MY Zhai - Journal of Applied Geophysics, 2014 - Elsevier
Seismic data may suffer from too severe noise contamination to carry out further processing and interpretation procedure. In the paper, a new scheme was proposed based on the …
C Zhang, M van der Baan - IEEE Transactions on Neural …, 2023 - ieeexplore.ieee.org
Microseismic signal reconstruction from complex nonrandom noise is challenging, especially when the signal is disrupted or completely covered by strong field noise. Various …
F Forghani-Arani, M Willis, SS Haines… - …, 2013 - pubs.geoscienceworld.org
The presence of strong surface-wave noise in surface microseismic data may decrease the utility of these data. We implement a technique, based on the distinct characteristics that …
X Liang, Y Li, C Zhang - Geophysical Prospecting, 2018 - earthdoc.org
The existence of strong random noise in surface microseismic data may decrease the utility of these data. Non‐subsampled shearlet transform can effectively suppress noise by …
C Birnie, K Chambers, D Angus… - Geophysical Journal …, 2016 - academic.oup.com
Noise is a persistent feature in seismic data and so poses challenges in extracting increased accuracy in seismic images and physical interpretation of the subsurface. In this paper, we …
Microseismic datasets typically have relatively low signal‐to‐noise ratio waveforms. To that end, several noise suppression techniques are often applied to improve the signal‐to‐noise …