PDF(13258 KB)
Research progress on denoising methods and applications of distributed acoustic sensing data
JiaXin SUN, Jing LI, Hui LIU, KaiWen ZHANG, ZhiYu ZHANG
Prog Geophy ›› 2025, Vol. 40 ›› Issue (3) : 1279-1295.
PDF(13258 KB)
PDF(13258 KB)
Research progress on denoising methods and applications of distributed acoustic sensing data
In recent years, Distributed Acoustic Sensing (DAS) technology has been widely used in earth interior structure research, underground space detection, and microseismic monitoring due to its advantages of high resolution, wide-band measurement, and real-time monitoring. DAS's noise type and complexity are higher than that of conventional geophone data because it is affected by various factors such as optical systems, demodulation algorithms, fiber-optic cable and ground coupling, and transverse and longitudinal waves. The data signal-to-noise ratio is lower than that of the data recorded by conventional geophones under the same noise level. Therefore, higher requirements are put forward for DAS data denoising methods. In recent years, domestic and foreign scholars have researched denoising and weak signal enhancement methods for different types of DAS data. This paper mainly introduces and discusses the latest research progress in denoising DAS data in seismic exploration and natural seismology exploration using traditional physical methods and different denoising methods. The challenges faced by the current DAS data denoising methods are summarized, and the future development trend is forecasted.
Distributed Acoustic Sensing (DAS) / Signal denoising / Weak signal enhancement / Physical methods / Deep learning methods
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Hou Q L, Liu D W, Wang X K, et al. 2021. Adaptive DAS coupling noise suppression based on local MCA. //SEG Technical Program Expanded Abstracts. SEG, 2979-2983, doi: 10.1190/segam2021-3594559.1.
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感谢审稿专家提出的修改意见和编辑部的大力支持!
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