tropospheric radio duct 对流层无线电波道
The paper explains the formation of radio holes in atmospheric duct based on ray tracing method, provides approximate expressions to determine the initial position of radio holes.
该文用射线跟踪法解释了大气波导中无线电盲区的形成原因，导出了计算无线电盲区起始位置的近似公式。
Atmospheric duct is a common phenomenon over the oceans and conditions of anomalous radio propagation.
大气波导是海上经常出现的现象，会导致电波异常传播。
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