2018年美赛A题O奖

上传者: 25895411 | 上传时间: 2019-12-21 20:35:53 | 文件大小: 1.37MB | 文件类型: pdf
The traditional communication methods of high frequency (HF) radio are still widely used worldwide, which has longer propagation distance than other kinds of radio communication systems, and can cover mountainous, deserts and oceans. At present, the studyof high frequency radio multi-hop propagation mode has been relatively systematic, which provide various methods to simulate its trajectory and attenuation in the air, ionosphere and earth surface. In this paper, we mainly focus on the reflection properties on the ocean surface, including calm and turbulent conditions. What’s more, the overall propagation process and practical application of HF radio are also involved.

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