Processing algorithms and performance evaluation of BDS RDSS location reporting service

doi:10.11947/j.AGCS.2022.20220024

Abstract

Abstract: RDSS (radio determination satellite service) short message is a characteristic service of the BeiDou satellite navigation system (BDS), which realizes user short-message communication and location reporting. The BDS RDSS based location reporting was realized for the first time on its first-generation system (BDS-1) using two GEO (geo-stationary earth orbit) satellites, and its accuracy was limited by the accuracy of the digital elevation model (DEM) database, which was used to assist its realization of 3D positioning service using two satellites only. Starting from its regional System (BDS-2), BDS has developed new technology of the location reporting in the Master Control Center (MCC) by integrating the RNSS (radio navigation satellite system) and RDSS observations. In the new development, the RNSS range and carrier phase observations of user stations are transmitted to the MCC through RDSS link, and the RNSS observations are used to determine users' precise positions in the MCC. Supported by the various types of precise spatio-temporal data, e.g. precise satellite orbits and clocks, the precision of user positioning is thus greatly improved. In this paper, we introduce the three location reporting processing algorithms used in the MCC central station, and evaluates their performance with respect to the sampling rates and baseline length. Data of the 50 BDS tracking stations in Mainland China is used to validate the performance. Results show that the precision of the location reporting realized in the MCC reaches 0.51 m and 0.94 m for horizontal and height components, respectively. The positioning precision shows little relation to both the baseline length and sampling rates, while the precision of BDS-2+BDS-3 combined solutions is improved by around 50% over the solutions using BDS-2 observations only.

Key words: BeiDou satellite navigation system, precise positioning, RDSS location reporting, zone correction

CLC Number:

P228

CHEN Junping, ZHANG Yize, YU Chao, DING Junsheng. Processing algorithms and performance evaluation of BDS RDSS location reporting service[J]. Acta Geodaetica et Cartographica Sinica, 2022, 51(4): 511-521.

References

[1] 谭述森. 广义卫星无线电定位报告原理及其应用价值[J]. 测绘学报, 2009, 38(1): 1-5. TAN Shusen. Theory and application of comprehensive RDSS position and report[J]. Acta Geodaetica et Cartographica Sinica, 2009, 38(1): 1-5.
[2] 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. YANG Yuanxi. Progress, contribution and challenges of compass/BeiDou satellite navigation system[J].Acta Geodaetica et Cartographica Sinica, 2010, 39(1): 1-6.
[3] 赵树强, 许爱华, 张荣之,等. 北斗一号卫星导航系统定位算法及精度分析[J]. 全球定位系统, 2008(1): 1-5. DOI: 10.3969/j.issn.1008-9268.2008.01.004. ZHAO Shuqiang, XU Aihua, ZHANG Rongzhi, et al. Positioning algorithm and precision analysis of BeiDou-I satellite navigation system[J]. GNSS World of China, 2008(1): 1-5. DOI: 10.3969/j.issn.1008-9268.2008.01.004.
[4] 谭述森. 广义RDSS全球定位报告系统[M]. 北京:国防工业出版社, 2011. TAN Shusen. The comprehensive RDSS global position and reporting system[M]. Beijing: National Defense Industry Press, 2011.
[5] 谭述森. 北斗系统创新发展与前景预测[J]. 测绘学报, 2017, 46(10): 1284-1289. DOI:10.11947/j.AGCS.2017.20170329. TAN Shusen. Innovative development and forecast of BeiDou system[J]. Acta Geodaetica et Cartographica Sinica, 2017, 46(10): 1284-1289. DOI:10.11947/j.AGCS.2017.20170329.
[6] 焦诚, 窦长江, 樊家琛, 等. 基于卫星导航RNSS/RDSS组合业务的三星定位算法[J]. 兵器装备工程学报, 2016, 37(8): 1-4. DOI: 10.11809/scbgxb2016.08.024. JIAO Cheng, DOU Changjiang, FAN Jiacheng, et al. Tri-satellite quick positioning algorithm based on generalized RNSS/RDSS[J]. Journal of Ordnance Equipment Engineering, 2016, 37(8): 1-4. DOI: 10.11809/scbgxb2016.08.024.
[7] XING Nan, SU Ranran, ZHOU Jianhua, et al. Analysis of RDSS positioning accuracy based on RNSS wide area differential technique[J]. Science China Physics Mechanics & Astronomy, 2013, 56(10): 1995-2001. DOI: CNKI:SUN:JGXG.0.2013-10-025.
[8] 赵姣姣, 曲江华, 袁洪. 北斗RNSS-RDSS组合模糊度解算方法[J]. 测绘学报, 2016, 45(4): 404-410. DOI: 10.11947/j.AGCS.2016.20150164. ZHAO Jiaojiao, QU Jianghua, YUAN Hong. A new ambiguity resolution method using combined RNSS-RDSS of BeiDou[J]. Acta Geodaetica et Cartographica Sinica, 2016, 45(4): 404-410. DOI: 10.11947/j.AGCS.2016.20150164.
[9] 蔡洪亮, 孟轶男, 耿长江, 等. 北斗三号全球导航卫星系统服务性能评估:定位导航授时、星基增强、精密单点定位、短报文通信与国际搜救[J]. 测绘学报, 2021, 50(4): 427-435. DOI: 10.11947/j.AGCS.2021.20200549. CAI Hongliang, MENG Yinan, GENG Changjiang, et al. BDS-3 performance assessment: PNT, SBAS, PPP, SMC and SAR[J]. Acta Geodaetica et Cartographica Sinica, 2021, 50(4): 427-435. DOI: 10.11947/j.AGCS.2021.20200549.
[10] 原玉磊, 黄杰, 陶静. 一种北斗无高程RDSS定位模型及其误差分析[J]. 计算机应用与软件, 2017, 34(3): 114-118. DOI: 10.3969/j.issn.1000-386x.2017.03.020. YUAN Yulei, HUANG Jie, TAO Jing. A BeiDou RDSS positioning model and its error analysis without elevation[J]. Computer Applications and Software, 2017, 34(3): 114-118. DOI: 10.3969/j.issn.1000-386x.2017.03.020.
[11] 张天桥, 王宏兵, 原亮, 等. 北斗RDSS定位报告与SARSAT卫星搜救业务性能比较分析[J]. 测绘科学与工程, 2014, 34(6): 74-78. ZHANG Tianqiao, WANG Hongbin, YUAN Liang, et al. Comparative performance-analysis between BDS RDSS position report and the SARSAT service[J]. Geomatic Science and Engineering, 2014, 34(6): 74-78.
[12] ZUMBERGE J F, HEFLIN M B, JEFFERSON D C, et al. Precise point positioning for the efficient and robust analysis of GPS data from large networks[J]. Journal of Geophysical Research Solid Earth, 1997, 102(B3): 5005-5017. DOI: 10.1029/96JB03860.
[13] 陈俊平, 张益泽, 周建华,等. 分区综合改正:服务于北斗分米级星基增强系统的差分改正模型[J]. 测绘学报, 2018, 47(9): 1161-1170. DOI:10.11947/j.AGCS.2018.20170156. CHEN Junping, ZHANG Yize, ZHOU Jianhua, et al. Zone correction: a SBAS differential correction model for BDS decimeter-level positioning[J]. Acta Geodaetica et Cartographica Sinica, 2018, 47(9): 1161-1170. DOI:10.11947/j.AGCS.2018.20170156.
[14] CHEN Junping, WANG Ahao, ZHANG Yize, et al. BDS satellite-based augmentation service correction parameters and performance assessment[J]. Remote Sensing, 2020, 12(5): 766-783. DOI: 10.3390/rs12050766.
[15] CHEN Junping, ZHANG Yize, YU Chao, et al. Models and performance of SBAS and PPP of BDS[J]. Satellite Navigation, 2022, 3(4): 1-14. DOI: 10.1186/s43020-022-00065-3.
[16] 陈俊平, 王阿昊, 张益泽,等. 北斗广域差分分米级定位的分区切换算法[J]. 测绘学报, 2019, 48(7): 822-830. DOI:10.11947/j.AGCS.2019.20180545. CHEN Junping, WANG Ahao, ZHANG Yize, et al. PPP algorithm using BDS new SBAS differential corrections[J]. Acta Geodaetica et Cartographica Sinica, 2019, 48(7): 822-830. DOI:10.11947/j.AGCS.2019.20180545.
[17] 阳仁贵, 袁运斌, 欧吉坤. 相位实时差分技术应用于飞行器交会对接研究[J]. 中国科学:物理学、力学、天文学, 2010,40(5): 651-657. DOI: CNKI:SUN:JGXK.0.2010-05-023. YANG Rengui, YUAN Yunbin, OU Jikun. Real-time GNSS carrier phase differential technique for spacecraft rendezvous and docking[J]. Scientia Sinica(Physica,Mechanica & Astronomica), 2010,40(5): 651-657. DOI: CNKI:SUN:JGXK.0.2010-05-023.
[18] CHEN Junping, WANG Jungang, WANG Ahao, et al. SHAtropE—a regional gridded ZTD model for China and the surrounding areas[J]. Remote Sensing, 2020, 12(1): 165-181. DOI: 10.3390/rs12010165.