Accuracy assessment of BDS-3 broadcast ephemeris

doi:10.13474/j.cnki.11-2246.2021.0011

Abstract

Abstract: In order to evaluate the accuracy of BeiDou-3 global navigation satellite system (BDS-3), broadcast ephemeris timely, this paper makes a comprehensive comparison and analysis of ephemeris error, orbital error and SISRE, signal in space range error. The data of broadcast ephemeris and precise ephemeris is released by Wuhan University of BDS-2 and BDS-3 from March 10 to March 22, 2018 and July 2 to July 14, 2019. The results show that the RMSE of the broadcast ephemeris of BDS-3 are basically better than 1.5 m, and the RMSE of BDS-2 GEO, IGSO and MEO satellites are less than respectively 3.0, 3.0, 2.0 m. The orbit errors of BDS-3 are basically better than 1.0 m, and the errors in the R direction are superior than the T and N directions, respectively 0.1, 1.0, 0.5 m. The orbit errors of the BDS-2 in the three directions of the radial R, T and N are 1, 3, 3 m. The SISRE of BDS-3 are better than 0.25 m, and SISRE of BDS-2 GEO, IGSO and MEO satellites are better than 0.5, 2.0, 0.5 m respectively. The results of this paper reflect that the BDS-3 signal is stable and its accuracy is improved.

Key words: BDS-3, broadcast ephemeris, SISRE, orbital accuracy, evaluation

CLC Number:

P228

WANG Zhaohui, MA Xiaping, YAN Li, LU Tieding, ZHAO Qingzhi. Accuracy assessment of BDS-3 broadcast ephemeris[J]. Bulletin of Surveying and Mapping, 2021, 0(1): 59-65,98.

References

[1] 杨元喜. 北斗卫星导航系统的进展、贡献与挑战[J]. 测绘学报, 2010, 39(1):1-6.
[2] 杨元喜,李金龙,徐君毅,等. 中国北斗卫星导航系统对全球PNT用户的贡献[J]. 科学通报, 2011, 56(21):1734-1740.
[3] YANG Y X, LI J L, WANG A B, et al. Preliminary assessment of the navigation and positioning performance of BeiDou regional navigation satellite system[J]. Science China Earth Sciences, 2014, 57(1):144-152.
[4] YANG Y X, XU Y Y, LI J, et al. Progress and perfor-mance evaluation of BeiDou global navigation satellite system:data analysis based on BDS-3 demonstration system[J]. Science China Earth Sciences, 2018, 61(5):614-624.
[5] 李敏,施闯,赵齐乐,等. 多模全球导航卫星系统融合精密定轨[J]. 测绘学报, 2011, 40(S1):26-30.
[6] 许扬胤,杨元喜,何海波,等. 北斗全球卫星导航系统试验卫星测距信号质量分析[J]. 武汉大学学报(信息科学版), 2018, 43(8):1214-1221.
[7] 潘林,蔡昌盛. 北斗广播星历精度评估[J]. 测绘通报, 2014(9):16-18.
[8] 曾琪,吴多,刘万科. 基于长期数据的北斗广播星历精度评估[J]. 大地测量与地球动力学, 2016, 36(11):958-962.
[9] 罗璠,李建文,黄海,等. BDS广播星历的轨道误差分析[J]. 测绘通报, 2015(2):70-72.
[10] 刘万科, 任杰, 曾琪, 等. 2013-2015年BDS空间信号测距误差的精度评估[J]. 国防科技大学学报, 2016,38(3):1-6.
[11] 孟祥广,孙越强,白伟华,等. 北斗卫星广播星历精度分析[J]. 大地测量与地球动力学, 2016, 36(10):870-873.
[12] 马下平,鲁尚强,李秦政,等. 北斗卫星导航系统的空间信号精度评估[J]. 测绘科学, 2019, 44(1):90-97.
[13] 贾蕊溪,董绪荣,李晓宇,等.北斗卫星导航系统空间信号精度分析[J].装备学院学报,2015,26(1):84-87.
[14] 郭忠臣,高井祥,曹新运. 北斗广播星历轨道及钟差精度分析[J]. 煤炭技术, 2015, 34(7):113-116.
[15] 张清华,隋立芬,贾小林,等. 北斗卫星导航系统空间信号误差统计分析[J]. 武汉大学学报(信息科学版),2014,39(3):271-274.
[16] 范丽红,张勤,黄观文,等. 基于广播星历的北斗卫星在轨运行状态分析[J]. 大地测量与地球动力学, 2017,37(1):58-61.
[17] 郭斐,张小红,李星星, 等. GPS系列卫星广播星历轨道和钟的精度分析[J]. 武汉大学学报(信息科学版), 2009,34(5):589-592.
[18] MONTENBRUCK O, SCHMID R, MERCIER F, et al. GNSS satellite geometry and attitude models[J]. Advances in Space Research, 2015, 56(6):1015-1029.
[19] 李方超,高井祥,姚一飞,等.GNSS广播星历精度评定与对比[J].大地测量与地球动力学,2018,38(9):943-947.
[20] WU Yun, LIU Xiaolei, LIU Wanke, et al. Long-term behavior and statistical characterization of BeiDou signal-in-space errors[J]. GPS Solutions, 2017, 21(4):1907-1922
[21] MONTENBRUCK O, STEIGENBERGER P, HAUSCHILD A. Broadcast versus precise ephemerides:a multi-GNSS perspective[J]. GPS Solutions, 2015,19(2):321-333.