摘要
船舶航行轨迹是船舶的位置和时间的记录序列,对分析船舶的航行状态、水上交通事故预测等具有重要的意义。为了修正AIS数据传输中断等原因导致船舶位置、时间更新数据不正确,解决船舶轨迹的缺失问题开展了船舶轨迹修复的研究,设计了分布式船舶轨迹修复模型,运用Vondrak滤波对船舶航行轨迹进行平滑的预处理,再通过三次样条插值法分别对船舶经度、纬度信息进行修复,最后将经度、纬度信息合并得到修复后的船舶轨迹,并利用Matlab对修复方法的效果进行仿真验证。结果表明,其算法误差为6.01×10-5,能够准确地修复船舶轨迹。为基于船舶航行轨迹数据的相关研究提供相对准确的数据支持。
Ship trajectories record the ship locations and times,which are significant for analyzing the navigation states and projecting maritime accidents.In order to correct the data errors of ship location and times due to AIS(automatic identification system)data transmission interruption and compensate the missing data of ship trajectories,this study proposed a ship trajectory restoration method.The study developed a distributive model of ship trajectories restoration by using Vondrak Filtering to smooth the navigation trajectories,and correcting the latitude and longitude information by using cubic spline interpolation,which formed the ship trajectories.The proposed restoration methods were verified by Matlab under simulation.The results show that the algorithm error is 6.01×10-5 and the proposed method can accurately restore ship trajectories.
出处
《交通信息与安全》
2015年第4期100-105,共6页
Journal of Transport Information and Safety
基金
国家自然科学基金项目(批准号:51105286)
中央高校基本科研业务费专项资金(批准号:2014-IV-137)资助
作者简介
刘立群（1990-）,硕士研究生,研究方向：智能交通系统、交通数据挖掘.E-liuliqun_whut＠163.com
褚端峰（1983-）,博士,副研究员,研究方向：智能交通系统、交通数据挖掘.E-chudf＠whut.edu.cn
