不同截止高度角对北美地区北斗三号B1C/B2a双频RTK定位精度的影响

Effect of Different Cut off Altitude Angles on the Positioning Accuracy of BDS-3B1C/B2a Dual Frequency RTK in North America

目前针对北美地区北斗三号B1C/B2a双频RTK定位精度评估的研究较少,为了验证北美地区北斗三号B1C/B2a双频的RTK定位精度,基于IGS跟踪站多天的观测数据开展RTK试验,分析了不同截止高度角对RTK定位精度的影响。算例分析了短基线和超短基线RTK定位精度,结果表明北美地区在截止高度角设置为5°时,B1C/B2a双频RTK定位精度最优。

At present, there is little research on the evaluation of the positioning accuracy of BDS-3B1C/B2a dual frequency RTK in North America. In order to verify the positioning accuracy of BDS-3 B1C/B2a dual frequency RTK in North America, this paper conducts RTK tests based on the observation data of IGS tracking station for many days, and analyzes the impact of different cut-off height angles on the RTK positioning accuracy. The results show that the B1C/B2a dual frequency RTK positioning accuracy is the best in North America when the cut-off angle is set to 5 °.