基于无线电通信技术的海上船舶自主定位方法

Autonomous Positioning Method of Ships at Sea Based on Radio Communication Technology

为提高海上船舶自主定位精度,降低或避免外界环境因素对定位精度造成的干扰,引入无线电通信技术,开展对定位方法的设计研究。利用无线电通信技术,接收海上船舶信息,并完成对信息的时空配准。基于权重的协方差融合方法,融合海上船舶位置数据。结合高斯投影和到达时间(Time of Arrival,TOA)算法,实现自主投影定位解算,获得海上船舶的位置测定结果。对比实验结果证明,新的定位方法定位结果误差更小,定位精度更高。

In order to improve the autonomous positioning accuracy of ships at sea and reduce or even avoid the interference of external environmental factors on positioning accuracy,radio communication technology is introduced to carry out the design and research on positioning methods.Using radio communication technology to receive the information of ships at sea and complete the space-time registration of the information.The covariance fusion method based on weight fuses the position data of ships at sea.Combining Gaussian projection and Time of Arrival(TOA)algorithm,the autonomous projection positioning solution is realized,and the position measurement results of ships at sea are obtained.The results of comparative experiments show that the new positioning method has smaller positioning error and higher positioning accuracy.