摘要
B1c、B2a频点为北斗三号系统提供了多频组合的多样性,为了评估B1c、B2a频点RTK定位性能,基于卡尔曼滤波方法分别对B1c、B2a单频RTK以及B1c、B2a双频RTK进行7.23 km短基线和500 m超短基线RTK定位性能分析,通过分析试验结果发现,短基线条件下B1c、B2a单频RTK定位精度可以达到近似厘米级精度,B1c、B2a双频RTK可以达到厘米级定位精度,超短基线条件下B1c、B2a单频RTK以及B1c、B2a双频RTK均能达到厘米级定位精度。
B1c、B2a frequency bands provide the diversity of multi-frequency combinations for BD-3.In order to evaluate the positioning performance of B1c and B2a frequency band RTK,the positioning performance of B1c and B2a single-frequency RTK and B1c、B2a dualfrequency RTK are analyzed based on Kalman filtering method,respectively,for 7.23 KM short baseline and 500m ultra-short baseline RTK.By analyzing the test results,it is found that the positioning accuracy of B1c and B2a single-frequency RTK can reach approximately centimeter-level accuracy under short baseline conditions;B1c、B2a dual-frequency RTK can reach centimeter-level positioning accuracy;B1c,B2a single-frequency RTK,and B1c、B2a dual-frequency RTK can reach centimeter-level positioning accuracy under ultra-short baseline conditions.
作者
张宇龙
辛全
ZHANG Yulong;XIN Quan(Heilongjiang First Surveying and Mapping Engineering Institute,Harbin 150025,China)
出处
《测绘与空间地理信息》
2025年第10期85-87,共3页
Geomatics & Spatial Information Technology
