摘要
为弥补估计频间偏差(inter-frequency biases, IFB)参数在短基线相对定位中研究的缺陷,基于多天短基线观测数据,采用一次线性函数IFB参数估计方法,分析了IFB参数估计方法在GNSS多系统组合短基线定位中的应用。实验结果表明,估计IFB参数估计能有效提升GNSS多系统短基线定位性定位精度,其中对Galileo/GLONASS组合定位精度提升效果最为明显,对其余组合定位精度提升量在5%~15%之间,可为今后GNSS多系统短基线定位解算参数设置提供一定参考。
To compensate for the shortcomings of estimating inter frequency biases(IFB)parameters in short baseline relative positioning research,based on several days short baseline observation data,a linear function IFB parameter estimation method was used to analyze the application of IFB parameter estimation method in GNSS multi-system combination short baseline positioning.The experimental results show that estimating IFB parameters can effectively improve the positioning accuracy of GNSS multi-system short baseline positioning,with the Galileo/GLONASS combination positioning accuracy being the most significantly improved.The improvement of positioning accuracy for other combinations is between 5%and 15%,which can provide some reference for future GNSS multi-system short baseline positioning solution parameter setting.
作者
肖明学
XIAO Mingxue(Hubei Provincial Bureau of Nuclear Industry Geology,Xiaogan 432000,China)
出处
《城市勘测》
2024年第3期113-117,共5页
Urban Geotechnical Investigation & Surveying
关键词
GNSS多系统
短基线
IFB参数估计
定位精度
GNSS multiple systems
short baseline
IFB parameter estimation
positioning accuracy
