这是我2018年参加数模美赛时全部题目A~F题，包括英文版，中文翻译版题目，适合参加数模国赛和美赛的同学熟悉一下题目。

2018年美国大学生数学建模大赛论文，获得了M奖，所选题目是D题

2018年的美赛的优秀论文，有非常严密的逻辑，汇集了各种大牛的结晶.

2018年 美赛的B题，内含详细的解题思路，以及各种数据，童叟无欺。

2018年美赛附加数据，从官网上抠下来的160万条数据，Excel打不开，用程序筛选出了2010-2015年间4个州的数据，共计1万多条

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.

2018年美赛A,B,C,D,E,F题o奖论文，A题5篇，B题5篇，C题5篇，D题6篇，E题7篇，F题4篇。（我资金购买的，不侵权）

2018年美赛A,B,C,D,E,F题o奖论文，A题5篇，B题5篇，C题5篇，D题6篇，E题7篇，F题4篇。（我资金购买的，不侵权）

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