摘要
采集了一组10 km短基线,初步评估了BDS-3 B1C、B1I、B2A、B3I单频短基线相对定位性能,并与GPS系统L1频率、Galileo系统E1频率做对比。实验结果表明,建设完成后的BDS卫星可见数与空间几何构成较优,4个频率短基线相对定位精度都可以达到厘米级,模糊度固定率都接近100%左右,无论定位精度还是模糊度固定率都优于L1频率和E1频率,可为今后BDS-3相对定位研究提供一定的参考。
In order to further evaluate the positioning performance of BDS-3, we collected a set of 10 km short baselines, initially evaluated the relative positioning performance of BDS-3 B1C, B1I, B2a, B3I single-frequency short baselines, and compared with GPS system L1 frequency,Galileo system E1 frequency. The experimental results show that after the completion of construction, the visible number and spatial geometry of BDS satellite are better. The relative positioning accuracy of four short baselines can reach the centimeter level, and the ambiguity fixed rate is close to about 100%. Both the positioning accuracy and the ambiguity fixed rate are better than L1 frequency and E1 frequency, which can provide a certain reference for future BDS-3 relative positioning research.
作者
贾亚军
都林婷
郐长明
阚中强
JIA Yajun;DU Linting;XI Changming;KAN Zhongqiang(Shandong Zhengyuan Digital City Construction Co.,Ltd.,Yantai 264670,China)
出处
《地理空间信息》
2023年第2期46-49,共4页
Geospatial Information
基金
山东省自然科学基金资助项目(ZR2017MD029)。
关键词
BDS-3
短基线
单频
精度
BDS-3
short baseline
single frequency
accuracy
