海上地震探査における牽引ストリーマー位置付けのためのスピンカーブフィッティングモデル
Haonan Zhang1,2,3, Kaiwei Sang1, Baocai Yang1,2
1School of Geosciences and Info-Physics, Central South University, Changsha 410083, China.
Sensors (Basel, Switzerland)
|August 28, 2025
まとめ
新しいスピンカーブモデルは,海上地震探査における牽引型ストリーマーの位置づけの精度を大幅に改善します. この高度な精度は 信頼性の高い地震イメージングに不可欠です 特に複雑なターニングシナリオでは
科学分野:
- 地理学
- 海洋地震調査
- データ取得
背景:
- 正確なストリーマー位置付けは,海洋地震探査の品質に不可欠です.
- 現在の多項式モデルは ストリーマー回転時に不正確さを示しています
- 信頼性の高い地震画像は 精密なストリーマー形状と位置データに依存します
研究 の 目的:
- 牽引するスリーバーのより正確な位置づけモデルを開発する.
- 複雑なシナリオにおける多項式曲線モデルの限界に対処する.
- 地震データの分析と解釈の信頼性を高める.
主な方法:
- ストリーマー形のスライン曲線モデルを構成する.
- 滑らかな制約を持つセグメンテッド・フィッティング・アプローチを実装する.
- パラメータと座標の誤差方程式と計算プロセスを導出します.
主要な成果:
- スプライン曲線モデルでは ポジショニングの精度が 大きく改善されました
- シミュレーションでは 精度が47.1%向上しました
- フィールドテストでは,それぞれ6つのストリーマーで20.0%と35.0%の精度が得られました.
結論:
- スプライン曲線モデルは,多項式モデルと比較してモデリングエラーを効果的に軽減します.
- このモデルは,地震操作中の高曲率条件において特に有利です.
- 提案された方法は,海洋地震画像の全体的な品質と信頼性を高めます.
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