Open Access
表1
物标分类
| 环境要素类型 | 要素模型 | 要素状态 |
| 钻井平台、岛屿 | 圆形 | 静态 |
| 浮标、明(暗)礁 | 点状 | 静态 |
| 浅滩、岸线 | 多边形 | 静态 |
| 常规机动船 | 椭圆形 | 动态 |
| 拖带船、拖网渔船 | 条形 | 动态 |
| 操限、失控船 | 圆形 | 动态 |
| 非机动船 | 点状 | 动态 |
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