超视距传播

蒸发波导是形成海上微波超视距传播的主要机制，波导模态理论用于研究微波在蒸发波导中的传播特性，但求解过程复杂，计算时间较长不适于实时应用。

Waveguide mode theory is used to study the characteristics of microwave propagation in the evaporation duct , but longer calculation time is not suitable for real-time applications .

大气波导可以使电磁波陷获在波导层结内实现超视距传播，将影响在其中传播的无线电信号。

Atmospheric duct can guide radio waves to distances far beyond the horizon with less attenuation , which will have a significant impact on the spread of radio signals .

超视距雷达传播模式识别

Identity of Propagation Modes for Over the Horizon Radar

天波超视距雷达在传播过程中会受到电离层的相位干扰，这将导致信号频谱的展宽，电离层的相位污染影响了雷达的探测性能。

In sky-wave over-the horizon radar ( OTHR ), radar signals are subjected to a variety of distortion and contamination effects as they propagate through the ionosphere , leading to severe degradation of the detection capability of OTHR radar .