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.

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Prog Geophy ›› 2025, Vol. 40 ›› Issue (3) : 1279-1295. DOI: 10.6038/pg2025II0086

Research progress on denoising methods and applications of distributed acoustic sensing data

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Abstract

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.

Key words

Distributed Acoustic Sensing (DAS) / Signal denoising / Weak signal enhancement / Physical methods / Deep learning methods

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JiaXin SUN , Jing LI , Hui LIU , et al . Research progress on denoising methods and applications of distributed acoustic sensing data[J]. Progress in Geophysics. 2025, 40(3): 1279-1295 https://doi.org/10.6038/pg2025II0086

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