A Self-supervised Swin-Unet Method for Ground Roll Suppression Based on Fourier Positional Encoding and Masking Strategy

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ID: 319920
2026
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Abstract
Summary To address the challenge in seismic exploration where strong-energy ground roll severely interferes with effective signals and conventional suppression methods tend to damage these signals, this paper proposes a self-supervised Swin-Unet network method for ground roll suppression based on Fourier Positional Encoding and a bespoke masking strategy. This method operates without the need for clean label data. By employing a specially designed fan-shaped masking strategy, it disrupts the spatio-temporal coherence of the ground roll, thereby guiding the network to learn the intrinsic characteristics of the effective signals and reconstruct the data. The core innovation lies in the introduction of Fourier Positional Encoding, which overcomes the inherent low-frequency bias of the Transformer architecture. This significantly enhances the network’s capability to model and recover high-frequency effective signals. Experimental results on synthetic data and field 2D/3D seismic datasets demonstrate that the proposed method not only effectively suppresses strong ground roll but also surpasses the traditional f – k filtering method in terms of signal fidelity, particularly in preserving deep, weak reflections and high-frequency components. This showcases its robustness and potential for application in complex seismic data processing.
Reference Key
openalex_W7167713221 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Xichao Shi, Xia Sun, Yuanhua Zhang, Pengjie Xue
Journal geophysical journal international
Year 2026
DOI
10.1093/gji/ggag262
URL
Keywords Keywords not found

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