北斗星基增强系统下远海船舶精准定位算法  

Accurate positioning algorithm for offshore ships under the beidou satellite based augmentation system

作　　者：韩金霞 范肖肖 马理胜 HAN Jinxia;FAN Xiaoxiao;MA Lisheng(College of Marine and Electrical Engineering,Jiangsu Maritime Institute,Nanjing 210000,China)

机构地区：[1]江苏海事职业技术学院轮机与电气工程学院,江苏南京210000 [2]江苏省智能船舶岸基控制技术工程研究中心,江苏南京210000

出　　处：《舰船科学技术》2024年第23期169-173,共5页Ship Science and Technology

基　　金：江苏省教育科学规划课题资助项目(C/2022/01/73);江苏高校哲学社会科学研究一般项目资助项目(2023SJYB0752)。

摘　　要：以精准定位远海船舶,确保船舶在复杂海洋环境中安全航行为目的研究北斗星基增强系统下远海船舶精准定位算法。该算法使用北斗星基增强系统对远海船舶单频信号内的电离层延迟、卫星轨道位置和时钟差参数进行修正增强处理,以提升远海船舶定位的精度,然后将增强后的远海船舶单频信号作为基础,对远海船舶接收机位置进行解算,得到远海船舶精准定位结果。实验结果表明,该方法的均方根误差始终低于6,说明其可以准确获得远海船舶定位结果,并且能够提升北斗星基增强系统实际播发有效IGP数量,远海船舶单频信号增强效果较好,应用效果较佳。Research on the precise positioning algorithm of offshore vessels under the Beidou satellite based augmentation system with the aim of ensuring safe navigation in complex marine environments.This algorithm uses the Beidou satellite based enhancement system to correct and enhance the ionospheric delay,satellite orbit position,and clock difference parameters in the single frequency signal of offshore ships,in order to improve the accuracy of offshore ship positioning.Then,the enhanced offshore ship single frequency signal is used as the basis to calculate the position of the offshore ship receiver and obtain accurate offshore ship positioning results.The experimental results show that the root mean square error of this method is always below 6,indicating that it can accurately obtain the positioning results of offshore ships,and can increase the actual effective number of Interior Gateway Protocol(IGPs)broadcasted by the Beidou satellite based enhancement system.The single frequency signal enhancement effect of offshore ships is good,and the application effect is good.

关 键 词：北斗星基增强系统 远海船舶 GEO卫星 单频信息增强 定位解算 

分 类 号：U664.82[交通运输工程—船舶及航道工程]