基于Hatch载波相位平滑算法的Galileo双频精密单点定位性能研究  

Research on Galileo Dual-frequency Precise Single Point PositioningPerformance Based on Hatch Carrier Phase Smoothing Algorithm

作　　者：彭嘉浚 石迪迪 王沁 PENG Jiajun;SHI Didi;WANG Qin(Zhejiang Land Survey and Planning Co.,Ltd.,Hangzhou 310000,China)

机构地区：[1]浙江省国土勘测规划有限公司,浙江杭州310000

出　　处：《测绘与空间地理信息》2023年第3期138-141,共4页Geomatics & Spatial Information Technology

摘　　要：为评估Hatch载波相位平滑算法对精密单点精度的影响,以多个MGEX跟踪站数据为解算数据,进行了滤波前后Galileo双频精密单点定位解算实验。实验结果表明,E1/E5a、E1/E5b双频组合精密单点定位精度可以达到厘米级,而E5a/E5b双频组合精密单点定位精度较差,不适合进行组合定位。Hatch载波相位平滑算法能在一定程度上提升Galileo双频精密单点定位精度,但提升程度较小,提升量都在10%以内。In order to evaluate the impact of the hatch carrier phase smoothing algorithm on the precision single-point accuracy,using the data of multiple MGEX tracking stations as the solution data,the Galileo dual-frequency precision single-point positioning solution experiment was carried out before and after filtering.The experimental results show that the precision single-point positioning accuracy of the E1/E5a,E1/E5b dual-frequency combination can reach cm level,while the precision single-point positioning accuracy of the E5a/E5b dual-frequency combination is poor and is not suitable for combined positioning.The hatch carrier phase smoothing algorithm can improve the Galileo dual-frequency precision single-point positioning accuracy to a certain extent,but the improvement is small,and the improvement is within 10%.

关 键 词：Hatch载波相位平滑算法 GALILEO 双频 精密单点定位 

分 类 号：P228.4[天文地球—大地测量学与测量工程]