北斗三号非组合三频单点定位精度分析  

Accuracy Analysis of Beidou-3 Non-combined Three-frequency Single-point Positioning

作　　者：黎湛明 LI Zhanming(Foshan Benchmark Surveying and Mapping Co.,Ltd.,Foshan 528200,China)

机构地区：[1]佛山准成测绘科技有限公司,广东佛山528200

出　　处：《测绘与空间地理信息》2022年第11期75-77,共3页Geomatics & Spatial Information Technology

摘　　要：为评估北斗三号多频组合定位性能,本文基于MEGX跟踪站实测数据,采用非组合模型解算了北斗三号双频与三频单点定位数据,分析了三频定位精度较双频定位精度的提升。实验结果表明,我国北斗三号卫星数与PDOP值情况较优,在我国境内双频与三频组合单点定位精度优于澳大利亚地区,非组合模型下2种三频组合单点定位精度较高,相比双频组合定位精度有明显提升。In order to evaluate the performance of the Beidou-3 multi-frequency combined positioning,this paper uses the non-combined model to calculate the Beidou-3 dual-frequency and triple-frequency single-point positioning data based on the measured data of the MEGX tracking station,analyzes the accuracy of the three-frequency positioning.Frequency positioning accuracy is improved.Experimental results show that the number of satellites and PDOP value of China’s Beidou-3 is better,and the single-point positioning accuracy of dual-frequency and three-frequency combination in China is better than that in Australia,and the two three-frequency combination single-point positioning accuracy is higher under the non-combined model.Compared with the dual-frequency combination,the positioning accuracy is significantly improved.

关 键 词：北斗三号 三频组合 单点定位 精度 

分 类 号：P228.49[天文地球—大地测量学与测量工程]