摘要
为了进一步提高BDS单参考站的载波相位差分定位精度,利用单参考站提供观测值的非差误差改正数对用户观测值进行改正,然后利用北斗系统B1、B2双频观测数据实现单参考站载波相位差分定位:首先利用B1、B2载波相位观测值组成单差载波相位宽巷观测值,采用搜索算法固定单差宽巷整周模糊度;之后建立宽巷及B1的单差观测方程;再利用搜索算法固定载波相位的整周模糊度。实验结果证明利用单参考站非差误差改正数的BDS载波相位差分定位能够完成单差模糊度解算,精度可达到cm级,而且实现效率高、用户端定位算法简单。
In order to improve the accuracy of carrier phase difference positioning of the single reference station of BDS, the paper introduced the method providing un-differential error corrections of carrier phase observations by single reference sta- tion to correct the observation, and used the B1 and B2 dual frequency observations of BDS to realize the carrier phase differ- ence of single reference station： firstly B1 and 132 of carrier phase observations were needed to compose the single difference carrier phase wide lane observations, and the single difference wide lane ambiguity was fixed with search algorithm and then the single difference observation equation of wide lane and B1 was established, then the integer ambiguity of carrier phase was fixed with search algorithm. Experimenval result showed that the single difference ambiguity resolution could be resolved by BDS carrier phase differential positioning with an un-differential error corrections of single reference station, whose precision could reach centimeter level with high efficiency and simple location algorithm of user side.
作者
杨秋实
徐爱功
祝会忠
高猛
YANG Qiushi XU Aigong ZHU Huizhong GAO Meng(School of Geomatics, Liaoning Technical University, Fuxin, Liaoning 123000, China)
出处
《导航定位学报》
2016年第4期59-64,共6页
Journal of Navigation and Positioning
基金
国家重点研发计划项目(2016YFC0803102)
国家自然科学基金资助项目(41504010
41474020)
辽宁省高等学校创新团队项目(LT2015013)
2014年辽宁省博士启动基金项目(20141141)
