为了满足现代船舶的发展需求,结合船舶自动识别系统(AIS)数据量巨大,包含了丰富的船舶信息等优点.本文利用SQL2012对AIS数据进行处理,建立包含船舶静态信息和动态信息的数据库;借助C#程序语言,构建以中心船舶为原点的网格坐标系,并以船舶间相对距离方位计算周围船舶在网格中的相对位置坐标;对同长度和类型的船舶进行网格叠加计算,并以船舶频数的方式进行统计,采用数据处理软件Matlab以最小二乘法的方式对统计结果进行处理;对研究水域的主要船型不同尺度的船舶领域进行对比和统计分析,并对不同船型船舶领域略作讨论,总结得出开阔水域船舶领域的特点.%In light of meeting the needs of developing modern ships and considering the advantage of AIS which could provide massive data and ample ship information,dataset containing both static and dynamic ship information was established through processing AIS data by using SQL2012.The grid coordinate of which origin is taken as ship's center was constructed by C# programming language,and coordinate of relative position was calculated based on the inter-ship relative bearing and distance.After that,the superimposed calculation was applied to those ships with the same length and type,statistics was made to the ship's frequency,and then the final statistics was processed by using data processing software Matlab with the least square method.Finally,the comparison and statistical analysis were carried out to the ship domain of prevailing ship type with different dimensions in defined water.The features of ship domain in open water were concluded based on the discussion of ship domains of different ship type.
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