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模拟和性能分析的Uplink激光传输跨海面:一个频道的特征研究研究研究
Hong Gao1, Tinglu Zhang1,2, Ruiman Yuan1
1College of Marine Technology, Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China.
Sensors (Basel, Switzerland)
|February 26, 2025
概括
这项研究模拟了通过海面的激光传输,发现一个空间模型,特别是Elfouhaily频谱,比统计模型更好地捕捉动态的海洋条件,以改善水下激光通信.
科学领域:
- 光学物理学的光学物理.
- 海洋学 海洋学 海洋学
- 激光工程 激光工程
背景情况:
- 由于海面条件变化,海洋环境对激光传输构成挑战.
- 准确的海面建模对于可靠的跨媒体激光通信至关重要.
研究的目的:
- 通过海水-海面-空气通道模拟和分析上链激光传输.
- 为了评估海面动态对激光传输性能的影响.
- 将一个新的空间海面模型与经典的统计模型进行比较.
主要方法:
- 使用射线跟踪和蒙特卡洛模拟.
- 开发了一个利用波谱和快速里埃变换 (FFT) 技术的空间海面模型.
- 评估了六种风波光谱,以Elfouhaily频谱为低风条件的突出标志.
主要成果:
- 空间模型有效地捕捉了由动态海面变化引起的功率波动.
- 较短的传输距离显示,与统计模型相比,由于漂移,功率估计差异约为0.9dB.
- 更深的传输减少了光束扭曲,将正常化峰值功率从-114dB降至-157dB.
- 激光中心点分布变得圆形,这是由于海面的近视角分布.
结论:
- 在海面建模中纳入时空动态对于精确的激光传输分析至关重要.
- 这些发现为优化复杂海洋环境中的水下空气激光传输链提供了洞察力.
- 埃尔福哈利的光谱在描述光学海面特性方面表现出卓越的性能,特别是在低风条件下.
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