Optimization of the BDS-2 triple-frequency un-combined PPP random model without inter-frequency clock deviation correction

doi:10.13474/j.cnki.11-2246.2023.0378

Abstract

Abstract: In view of the inter-frequency clock deviation (IFCB) of BeiDou-2 Navigation Satellite System (BDS-2) will lead to systematic deviation in multi-frequency precision point positioning (PPP), an optimization scheme for a triple-frequency un-combined PPP stochastic model suitable for BDS-2 without IFCB correction is presented. The method of optimal stochastic model building is objectively evaluated and analyzed through data from 30 monitoring stations distributed in the Asia-Pacific region. The results show that the BDS-2 third frequency carrier phase observed variance should be amplified to 2.0 to 4.0 times of the original variance. In order to further verify the usability of this stochastic model, the static and dynamic solutions are implemented for six additional stations. Both the positioning accuracy and convergence time shown the same effect as the real IFCB correction, and it is better than the BDS-2 triple-frequency un-combined PPP which does not take into account the influence of IFCB.

Key words: BDS-2, IFCB, precise point positioning, random model, un-combined PPP

CLC Number:

P228

ZHOU Changjiang, YU Haifeng, WANG Linwei, LEI Yunping, YUE Caiya. Optimization of the BDS-2 triple-frequency un-combined PPP random model without inter-frequency clock deviation correction[J]. Bulletin of Surveying and Mapping, 2023, 0(12): 164-168.

References

[1] 张小红,柳根,郭斐,等. 北斗三频精密单点定位模型比较及定位性能分析[J]. 武汉大学学报(信息科学版),2018,43(12): 2124-2130.
[2] 龚晓鹏. 北斗/GNSS三频实时高精度大网快速处理方法研究[D]. 武汉: 武汉大学,2018.
[3] 王进. GNSS多频精密单点定位及快速模糊度固定算法研究[D]. 西安: 长安大学,2020.
[4] PAN Lin,ZHANG Xiaohong,LIU Jingnan. A comparison of three widely used GPS triple-frequency precise point positioning models[J]. GPS Solutions,2019,23(4): 1-13.
[5] GONG Xiaopeng,GU Shengfeng,LOU Yidong,et al. Research on empirical correction models of GPS Block IIF and BDS satellite inter-frequency clock bias[J]. Journal of Geodesy,2020,94(3): 1-11.
[6] MONTENBRUCK O,HUGENTOBLER U,DACH R,et al. Apparent clock variations of the Block IIF-1(SVN62) GPS satellite[J]. GPS Solutions,2012,16(3): 303-313.
[7] LI Haojun,LI Bofeng,XIAO G,et al. Improved method for estimating the inter-frequency satellite clock bias of triple-frequency GPS[J]. GPS Solutions,2016,20: 751-760.
[8] 李浩军,李博峰,王解先,等. 估计北斗卫星钟差频间偏差的一种方法[J]. 测绘学报,2016,45(2): 140-146.
[9] 赵庆,高成发,潘树国,等. 顾及频间钟差的BDS/GPS三频非组合精密单点定位方法[J]. 中国惯性技术学报,2019,27(5): 631-636,645.
[10] 黄观文,雷哲哲,王进,等. 亚太区域不同遮挡情形下多系统组合PPP定位效能分析[J]. 大地测量与地球动力学,2018,38(6): 562-567.
[11] 李树文,王潜心,武威. BDS-3单双频信号全球定位精度分析[J]. 测绘科学,2021,46(12): 67-74.
[12] 周锋,徐天河. GPS/BDS/Galileo三频精密单点定位模型及性能分析[J]. 测绘学报,2021,50(1): 61-70.
[13] 王敏,岳彩亚,张建红. GNSS频间钟偏差时变特征分析及非组合PPP应用[J]. 测绘科学,2023,48(1): 23-31.
[14] 屈利忠,杜明义,王坚,等. 多模GNSS精密卫星钟差估计与分析[J]. 武汉大学学报(信息科学版),2018,43(1): 107-111.
[15] 张高舰,赵齐乐,陶钧,等. GPS/BDS三频信号频间时钟偏差估计与定位验证[J]. 测绘通报,2022(12): 102-109.