雷达标绘是雷达避碰的基础。
Radar plotting is the basis of collision avoidance with radar.
论文首先推导出雷达标绘的通用数学模型，并进一步确立系统的评估要素。
First of all, the dissertation reasons out the general mathematic models of radar plotting by means of the plane analytic geometry, and establishes the assessment factors of the system.
但目前的研究大部分是基于单物标船的研究，对于多物标雷达标绘评估系统的研究还很少涉及。
However, those research was based on single target ship and there was little research on multi-ship radar plotting assessment system.
STCW公约明确要求500总吨或以上船舶，负责航行值班的高级船员能使用雷达和自动雷达标绘仪保持安全航行。
STCW definitely order that the officer of watch onboard a ship of more than 500 ton must have the ability to use radar and ARPA to keep the voyage in safe stage.
ARPA(自动雷达标绘仪)是当今船舶导航避碰主要的辅助设备，如果使用得当，无疑对船舶航行安全将起到积极的作用。
ARPA (Automatic Radar Plotting Aids) is a ship's main assistant equipments for navigation and collision. If it is to be used correctly, no doubt it will make active effect to ship's navigation.
ARPA(自动雷达标绘仪)是当今船舶导航避碰主要的辅助设备，如果使用得当，无疑对船舶航行安全将起到积极的作用。
ARPA (Automatic Radar Plotting Aids) is a ship's main assistant equipments for navigation and collision. If it is to be used correctly, no doubt it will make active effect to ship's navigation.
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