進化的アルゴリズムを用いた非線形適応ハンスタインフィルタ構造の堅牢な設計:ECG信号へのリアルタイム応用
Shubham Yadav1, Suman Kumar Saha2, Rajib Kar3
1Department of Computer Science and Engineering, C. V. Raman Global University, Bhubaneswar, Odisha, India. shubham.ydv@gmail.com.
Cardiovascular engineering and technology
|January 6, 2026
まとめ
この研究では、成長最適化メタヒューリスティックで最適化された新しい適応ハンスタインフィルタを使用して、ECG信号の品質を向上させ、アーチファクトを除去します。この方法は、信号対雑音比を大幅に改善し、心臓信号分析をより明確にするための平均二乗誤差を削減します。
科学分野:
- 生体信号処理
- 計算知能
- 心臓血管工学
背景:
- 心電図(ECG)信号は、外部ノイズやアーチファクトの影響を受けやすい低振幅の非定常生体信号です。
- 正確なECG解釈と診断のためには、アーチファクト除去が不可欠です。
- 既存の方法では、ECG信号の複雑な非線形性と重畳されたノイズに対処することがしばしば困難です。
研究 の 目的:
- ECG信号のための効率的なアーチファクト除去技術を開発および評価すること。
- メタヒューリスティックアルゴリズムを使用して非線形適応ハンスタインフィルタを最適化すること。
- 成長最適化アルゴリズムがECG信号品質の向上に果たす性能を評価すること。
主な方法:
- 非線形適応ハンスタインフィルタ構造を設計しました。
- 成長最適化アルゴリズム、粒子群最適化、花粉受粉アルゴリズム、海洋捕食者アルゴリズムを含むメタヒューリスティック最適化アルゴリズムを適用しました。
- 筋肉ノイズや白色ガウスノイズなどのさまざまなアーチファクトで破損したECG信号でフィルタの効果をテストしました。
主要な成果:
- 成長最適化アルゴリズムによって最適化された適応ハンスタインフィルタは、優れた性能を示しました。
- 信号対雑音比(SNR)を12 dB大幅に改善しました。
- 平均二乗誤差(MSE)を3.698E-08という最小値に達成しました。
- デジタル信号プロセッサキットを使用してシミュレーション結果を検証しました。
結論:
- 提案された成長最適化アルゴリズムに基づく適応ハンスタインフィルタは、ECG信号からアーチファクトを効果的に除去します。
- この技術は、既存の最先端の方法と比較して大幅な改善を提供します。
- この方法は、実用的なECG信号強化アプリケーションに適しています。
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