深層分離および残差拡張畳み込みを備えたマルチスケールアテンションネットワークによる効率的な地震データノイズ除去
Zhenjing Yao1,2,3, Lei Hao4,5,6, Lan Qin4,5,6
1Department of Information and Control Engineering, Institute of Disaster Prevention, Sanhe, 065201, China. yaozhenjing000@126.com.
Scientific reports
|December 17, 2025
まとめ
新しいネットワークであるMSARDNetは、複雑なノイズを効果的に除去し、信号対雑音比(SNR)を大幅に向上させ、データ処理精度を向上させます。
科学分野:
- 地球物理学
- 信号処理
- 機械学習
背景:
- 高い信号対雑音比(SNR)は、正確な地震データ処理に不可欠です。
- 複雑なノイズ干渉は、地震信号ノイズ除去における大きな課題です。
研究 の 目的:
- 地震信号ノイズ除去のための新しいネットワークであるMSARDNetを導入すること。
- 地震データにおける複雑なノイズ干渉の課題に対処すること。
主な方法:
- MSARDNetは、エンコーダー、ResDC、およびデコーダーモジュールを備えたマルチレベル特徴処理アーキテクチャを採用しています。
- 深層分離畳み込みと強化されたチャネルアテンションは、効率的な特徴抽出とノイズ抑制に使用されます。
- ResDCモジュールの拡張畳み込みと残差接続は、マルチスケール特徴抽出を促進し、信号の整合性を保持します。
主要な成果:
- MSARDNetは、U-Net、DnCNN、DeepDenoiserと比較して、それぞれ15.94 dB、12.03 dB、4.83 dBのSNR改善を達成しました。
- ネットワークは、有用な地震信号を保持しながら、複雑なバックグラウンドノイズを効果的にフィルタリングします。
- 合成データおよびフィールドデータでの比較実験により、MSARDNetの優れたパフォーマンスが検証されました。
結論:
- MSARDNetは、既存の方法と比較して、複雑なノイズを除去する上で優れたパフォーマンスを示しています。
- 提案されたネットワークは、地震データ処理および分析における広範なアプリケーションの大きな可能性を秘めています。
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