针对无线电波通信距离的问题，模拟粗糙光滑的地形来实现对船舶穿越海洋的无线短波通信距离的分析。通过建立一种天波多跳损耗模型，研究了不同海平面下既定瓦数下载波信息的第一个最大跳损。可以得出在湍流海面的第一次大跳跃中，无线电波的反射强度为42.833 dB,平静的海面的反射强度为46.569 9 dB。在高频信号的初始分贝为2.969 7 dB,噪声功率为 5.047× W的情况下，湍流海面的最大跳跃为4跳，平静海面的最大跳跃为6跳。崎岖地形的最大跳数是 2 跳，但此时不能返回电离 F 层; 平坦地形的最大跳数是 2 跳, 但此时它可以返回到电离 F层。通过对模型的建立和分析，可以得出无线电波在崎岖和平坦山区的损耗远远大于海洋。

Aiming at the problem of short wavelength of wireless communication, we simulate rough and smooth terrain to realize the analysis of ship's short-wave communication distance across the ocean. In this paper, a skywave multi-hop loss model is established, and the first maximum jump loss of downloaded wave information with given wattage at different sea levels is studied. It can be concluded that in the first big jump of turbulent sea surface, the reflective intensity of radio wave is 42.833 dB and that of calm sea surface is 46.569 9 dB. When the initial decibel of high frequency signal is 2.969 7dB and the noise power is 5.047× W, the maximum jump of turbulent sea surface is 4 hops and that of calm sea surface is 6 hops. The maximum hop of rugged terrain is 2 hops, but it cannot return to the ionized F layer at this time; the maximum hop of flat terrain is 2 hops, but it can return to the ionized F layer at this time. Through the establishment and analysis of the model, it can be concluded that in the rugged and flat mountainous areas, the loss of radio wave is far greater than that in the ocean.