一种切片式抛物线方程方法来描述海上无线电传播
Yuzhen Wang1,2, Ting Zhou3,4, Tianheng Xu1,4
1Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China.
Sensors (Basel, Switzerland)
|July 11, 2023
概括
这项研究引入了一种新的模型和算法,用于预测大气管道影响的海上环境中的无线电传播. 这些发现提高了超视线通信的准确性,这对于宽带系统至关重要.
科学领域:
- 电磁学和波浪传播
- 大气科学与气象学
- 无线电通信工程 无线电通信工程
背景情况:
- 大气管道显著影响海上无线电传播,使或破坏视线之外的通信.
- 靠近海岸的大气条件表现出高度的时空变化,导致异质和不可预测的管道现象.
- 这些管道的准确建模对于可靠的海上宽带通信至关重要.
研究的目的:
- 评估水平不均的大气管道对海上无线电传播的影响.
- 开发和验证一个新的范围依赖的大气管道模型和切片式抛物线方程算法用于路径损失预测.
- 分析管道特征对海上环境中接收信号强度的影响.
主要方法:
- 设计了一个取决于范围的大气管道模型,利用气象再分析数据.
- 开发了一种切片式抛物线方程算法,并为路径丢失预测提供相应的数值解决方案.
- 使用3.5GHz远距离无线电传播测量,分析管道空间分布和特征,验证了算法.
主要成果:
- 拟议的算法在取决于范围的管道条件下准确预测了路径损失,显示了与测量数据的一致性.
- 与现有方法相比,该算法表现出优越的性能,特别是在多个管道的时期.
- 模拟证实了水平管道特征对接收信号强度的显著影响.
结论:
- 开发的范围依赖管道模型和切片式抛物线方程算法有效地解决了在不均的大气管道环境中的海上无线电传播的挑战.
- 这些发现为预测无线电路损失提供了更准确的工具,提高了海上宽带通信的可靠性.
- 对管道水平特性进行进一步的研究对于优化海上通信系统至关重要.
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