ミリ波レーダー配列に基づく波測定システムの設計と実装
Zhijin Qiu1, Yunfei Jiang1, Bo Wang1
1State Key Laboratory of Physical Oceanography, Institute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao 266001, China.
Sensors (Basel, Switzerland)
|February 13, 2026
まとめ
高精度の海波観測は,海上の安全にとって不可欠です. 1垂直2傾斜ミリ波レーダー配列 (1V2I-MMWRA) は,波のパラメータを正確に測定し,スペクトルの推定を上回り,特に台風の間.
科学分野:
- 海洋学 海洋学 海洋学
- リモートセンシング技術
- マリンエンジニアリングは,海洋工学です.
背景:
- 海洋波は,海上の安全性,オフショア建設,災害警告に大きく影響します.
- 正確でリアルタイムな波のパラメータ観測は,これらのアプリケーションにとって極めて重要です.
- 既存の技術は,様々な海洋環境における信頼性の検証を必要とする.
研究 の 目的:
- リアルタイムで海波を観測するための1垂直2傾きミリ波レーダー配列 (1V2I-MMWRA) の性能を評価する.
- 波のパラメータ計算のためのゼロクロス方法とスペクトル推定の精度を比較する.
- 1V2I-MMWRAシステムの信頼性を検証するため,特に台風のような極端な天候条件下では.
主な方法:
- 1V2I-MMWRAシステムを活用して,南シナ海における波移転のタイムシリーズデータを収集しました.
- 重要な波の高さ,平均波の高さ,平均波周期,平均波周期を含む主要な波のパラメータを推定し,ゼロクロッシングとスペクトル推定方法の両方を用いる.
- 航空海界面フルスボイに対するシステムの性能を検証し,方向スペクトルを分析した.
主要な成果:
- ゼロクロスメソッドは,スペクトル推定と比較して,すべての推定波のパラメータに対して,より低いルート・メア・スクエア・エラー (RMSEs) を示す優れた精度を示した.
- スペクトルの推定は,特に台風の発生時に,偏差が増加したことを示しました.
- 方向スペクトルの分析は,ピーク周波数とパワースペクトル密度 (PSD) が台風の強度とともに強まり,波の方向がin situ測定と密接に一致することを示しました.
結論:
- 1V2I-MMWRAシステムは,台風などの極端な条件下でも,海波のパラメータを観察するのに非常に信頼性が高い.
- このレーダー配列を使用した波のパラメータ推定では,ゼロクロス方法がより正確です.
- 1V2I-MMWRAは,低電力消費と海洋観測のための展開の容易さの利点を提供しています.
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