摘要
针对BDS-2、BDS-3、BDS-2/BDS-3不同双频组合精密单点定位的性能差异,本文分析了BDS-3中7种不同双频组合的PPP精度,并与BDS-2、BDS-2/BDS-3相同频率双频组合PPP精度进行了对比。结果表明,BDS-2和BDS-3相同频率双频组合PPP精度与首次收敛时间相当,其中B2I/B3I组合的PPP精度与首次收敛时间最差,BDS-2/BDS-3组合的定位精度和首次收敛时间相比单一情况有了较大改善。在BDS-3双频组合的PPP方面,B2b/B3I组合的PPP精度和首次收敛时间是BDS-3中7种双频组合PPP精度中最差的,其他6种双频组合PPP定位性能相当。
In view of the difference in the precise point positioning performance of different dual-band combinations of BDS-2,BDS-3,and BDS-2/BDS-3,this paper analyzes the PPP precision of seven different dual-band combinations in BDS-3 and compares it with BDS-2,BDS-2/BDS-3 same frequency dual frequency combination PPP precision comparison. The results show that the precision of BDS-2 and BDS-3 at the same frequency dual-frequency combination PPP is equivalent to the first convergence time. Among them,the precision of B2I/B3I combination PPP is the worst,and the precision of BDS-2/BDS-3 positioning precision and the first convergence time compared with the single situation,it has been greatly improved. In terms of BDS-3 dual-band combined PPP,the precision and first convergence time of the B2b/B3I combined PPP are the worst of the BDS-3 seven dual-band combined PPP,and the positioning performance of the other six dual-band combined PPPs is comparable.
作者
刘生锋
杨文龙
谷涛
LIU Shengfeng;YANG Wenlong;GU Tao(China Ordnance Industry Test and Research Institute,Huayin 714200,China;Northern Electronics Research Institute Co.,Ltd.,Xi'an 710000,China)
出处
《测绘通报》
CSCD
北大核心
2021年第3期7-11,17,共6页
Bulletin of Surveying and Mapping
基金
“十一五”国防基础科研项目(B0920060335)。
关键词
BDS-3
精密单点定位
双频
精度
收敛时间
BDS-3
precise point positioning
dual frequency
precision
convergence time
