BDS-3/GPS/Galileo兼容频率紧组合短基线性能分析
Performance Analysis of BDS-3/GPS/Galileo Compatible Frequency Tight Combination Short Baseline
柴鑫1
作者信息
- 1. 自然资源部第三地形测量队,黑龙江哈尔滨 150025
- 折叠
摘要
针对紧组合模型在短基线相对定位中的应用问题,基于MGEX跟踪站组成的短基线连续多天实测数据,对比分析了BDS-3/GPS、BDS-3/Galileo和BDS-3/GPS/Galileo兼容频率紧组合短基线相对定位精度.实验结果表明,3种组合短基线相对定位精度均在厘米级,且三系统组合定位精度优于双系统组合定位精度.紧组合短基线相对定位精度相比松组合模型有较明显提升,BDS-3/Galileo组合E方向精度最大提升量达到18.04％,其余提升精度均在10％以下.
Abstract
In view of the application of tight combination models in short baseline relative positioning,based on the real-time data of short baseline continuous multi-day observations composed of MGEX tracking stations,the BDS-3/GPS,BDS-3/Galileo,and BDS-3/GPS/Galileo compatible frequency tight combination short baseline relative positioning accuracy were compared and analyzed. The experimental results show that the three combined short baseline relative positioning accuracy are all at the centimeter level,and the three system combined positioning accuracy is better than the dual system combined positioning accuracy. The tight combination short baseline relative positioning accuracy has a significant improvement compared to the loose combination model,with a maximum im-provement of 18.04％ in the BDS-3/Galileo combined E direction accuracy,and the remaining improvement accuracy is below 10％.
关键词
BDS-3/GPS/Galileo/兼容频率/紧组合/短基线Key words
BDS-3/GPS/Galileo/compatible frequency/tight combination/short baseline引用本文复制引用
出版年
2024
NETL
NSTL
万方数据