BDS-3/GPS/Galileo双频兼容频率中长基线单历元性能分析  

Performance Analysis of BDS-3/GPS/Galileo Dual-frequency Compatible Frequency Medium and Long Baseline Single Epoch

作　　者：黄志标 谢斌 赵辉煌 HUANG Zhibiao;XIE Bin;ZHAO Huihuang(Zhejiang Institute of Surveying and Mapping Science and Technology,Hangzhou 311100,China;Zhejiang Land Survey and Planning Co.,Ltd.,Hangzhou 310030,China)

机构地区：[1]浙江省测绘科学技术研究院,浙江杭州311100 [2]浙江省国土勘测规划有限公司,浙江杭州310030

出　　处：《测绘与空间地理信息》2025年第3期80-82,86,共4页Geomatics & Spatial Information Technology

摘　　要：针对当前评估多系统兼容频率中长基线性能研究较少的问题,本文基于一组中长基线多天实测数据,对比分析了BDS-3/GPS/Galileo双频兼容频率6种情况定位性能。实验结果表明,多系统组合能有效改善单系统或者双系统卫星空间几何构型,6种情况下长基线定位精度均在厘米级,但单系统模糊度固定率较差,均低于80%,而双系统和三系统组合模糊度固定率接近100%。双系统组合定位精度与模糊度固定率相比单系统有较明显提升,而三系统组合定位精度与模糊度固定率相比双系统的提升量相对较低。In view of the problem that there are few studies on the performance of medium and long baselines in the evaluation of multi-system compatible frequencies,this paper compares and analyzes the positioning performance of BDS-3/GPS/Galileo dual-frequency compatible frequencies in six cases based on a group of measured data of medium and long baselines in many days.The experimental results show that multi-system combination can effectively improve the spatial geometry of single or dual system satellites.The positioning accuracy of medium and long baseline in six cases is at the centimeter level,but the ambiguity fixed rate of single system is poor,which is lower than 80%,while the ambiguity fixed rate of dual and triple system combination is close to 100%.Compared with the single system,the combined positioning accuracy and ambiguity fixed rate of dual systems is significantly improved,while compared with dual system,the combined positioning accuracy and ambiguity fixed rate of triple systems is relatively low.

关 键 词：BDS-3/GPS/Galileo 双频 兼容频率 中长基线 

分 类 号：P228.4[天文地球—大地测量学与测量工程]