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<p>In this paper, we propose a Parabolic Equation (PE) method to analyze path loss and clutter power under various wind speed conditions. The proposed process employs the ocean spectrum, and a phase randomization method is utilized to generate realistic sea surfaces. This sea surface model is then used as terrain input for the PE method. In this analysis, the wind speed increases from 5&#xa0;m/s to 15&#xa0;m/s, and atmospheric conditions are selected as a normal condition and a duct condition with a high refractivity gradient. When the atmospheric condition is the normal, the average clutter powers are − 321.8 dBW, − 307.4 dBW, and − 254.4 dBW for wind speeds of 5&#xa0;m/s, 10&#xa0;m/s, and 15&#xa0;m/s, respectively, while under the duct atmospheric condition, the values are − 39.7 dBW, − 41.0 dBW, and − 54.2 dBW, respectively. The results demonstrate that the proposed process is suitable for analyzing the variation of clutter power with wind speed.</p>

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Analysis of Path Loss and Clutter Power for Wind Speeds Using the Parabolic Equation Method and Ocean Spectra Models

  • 期刊论文

  • 发表日期：

    2025年9月26日

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  • Taekyeong Jin,
  • Doyoung Jang,
  • Nammoon Kim,
  • Hosung Choo

摘要

In this paper, we propose a Parabolic Equation (PE) method to analyze path loss and clutter power under various wind speed conditions. The proposed process employs the ocean spectrum, and a phase randomization method is utilized to generate realistic sea surfaces. This sea surface model is then used as terrain input for the PE method. In this analysis, the wind speed increases from 5 m/s to 15 m/s, and atmospheric conditions are selected as a normal condition and a duct condition with a high refractivity gradient. When the atmospheric condition is the normal, the average clutter powers are − 321.8 dBW, − 307.4 dBW, and − 254.4 dBW for wind speeds of 5 m/s, 10 m/s, and 15 m/s, respectively, while under the duct atmospheric condition, the values are − 39.7 dBW, − 41.0 dBW, and − 54.2 dBW, respectively. The results demonstrate that the proposed process is suitable for analyzing the variation of clutter power with wind speed.