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海上自由空间光通信现场测试和链接预算统计数据
Optics express
|June 11, 2024
概括
在海上环境中预测自由空间光学 (FSO) 链路性能具有挑战性. 统计大气预测改进了链接预算分析,提高了FSO系统在各种天气条件下的可靠性.
科学领域:
- 光学通信是指光学通信.
- 大气物理学 大气物理学
- 无线网络无线网络.
背景情况:
- 自由空间光学 (FSO) 链路范围受到大气条件 (如灭绝和流) 的重大影响,特别是在海上环境中.
- 在可变的海上大气条件下准确预测FSO系统性能仍然是一个重大挑战.
- 传统的链接预算估计通常依赖于名义大气假设,限制了它们的预测能力.
研究的目的:
- 评估统计大气预测对增强自由空间光学链路预算分析的有用性.
- 将模型预测与现场收集的数据进行比较,以验证在特定地理位置的方法.
- 通过结合局部大气变化来改善FSO链路性能预测.
主要方法:
- 使用针对特定地理区域的统计大气预测来进行链接预算分析.
- 进行了10Gb/s的岸对船FSO通信现场测试,延伸到40公里以上.
- 使用大气灭绝和流的累积分布函数分析性能,由数值天气预报数据提供信息.
主要成果:
- 证明了统计大气分析在预测FSO链路性能方面的有效性.
- 在实地测试期间,在中等到晴朗的天气条件下实现了超过40公里的FSO连接.
- 通过将预测与来自三叉战士测试的现场收集数据进行比较来验证方法.
结论:
- 统计大气预测提供了一种可靠的方法来改进FSO链接预算分析在海上环境.
- 通过数值天气预报数据将局部大气变异纳入,可以提高FSO系统性能预测.
- 经过验证的方法提供了在全球不同地区可靠的FSO通信规划的途径.
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