全球定位系统2025，Vol.50Issue(5)：33-40,8.DOI:10.12265/j.gnss.2025050
BDSBAS机载接收机电离层误差校正评估方法研究
Research on the evaluation method of ionospheric error correction for BDSBAS airborne receiver
摘要
Abstract
Using BeiDou Satellite Based Augmentation System(BDSBAS)messages,precision ephemerides,International GNSS Service(IGS)ionospheric total electron content(TEC)files,and IGS station observation files as experimental data,the ionospheric residuals in the BDSBAS grid points and in the pseudorange of the stations are calculated to evaluate and analyze the performance of the correction of BDSBAS ionospheric errors.Using the observation data from domestic IGS observatories,the tilted ionospheric error at the ionospheric pierce point calculated by the BDSBAS message is similar to that calculated by the dual-frequency method,with a residual difference of about 2 m,and the residual difference is basically below the boundary of the error calculated by the BDSBAS message,which indicates that the BDSBAS ionospheric correction meets the expectation.Finally,the flight trajectory of the approach section of the aircraft is simulated,and the ionospheric residuals at the nearest observatory's ionospheric pierce point corresponding to the aircraft position are taken as the reference value,so as to provide a method for the assessment of the ionospheric correction of the on-board receiver.关键词
北斗星基增强系统(BDSBAS)/电离层残差/穿刺点计算/双线性内插法/双频法Key words
BDSBAS/ionospheric residuals/ionospheric pierce point calculation/bilinear interpolation method/dual-frequency method分类
测绘与仪器引用本文复制引用
刘瑞华,袁曾凡..BDSBAS机载接收机电离层误差校正评估方法研究[J].全球定位系统,2025,50(5):33-40,8.基金项目
国家自然科学基民航联合基金重点项目(U2233215) （U2233215）
