辛洁,郭睿,郭靖蕾,田翌君,王冬霞

• 1:32021部队

摘要(Abstract)：

针对北斗星基增强系统(BDSBAS)试验运行阶段播发的星基增强电文连续性及可用性问题,该文结合民用双频星基增强BDSBAS-B2a电文播发现状,分析了BDSBAS-B2a电文内容及播发策略,并比对分析了不同服务区域有无星基增强电文支持条件下的用户定位精度,初步验证了BDSBAS-B2a电文的有效性。评估结果表明:(1)BDSBAS-B2a电文类型、信息内容及更新周期均满足国际标准约定,初步具备了与其他星基增强系统(SBAS)在信号和信息层面的兼容与互操作能力;(2)相较于该文监测实现的BDS双频基本导航定位精度,BDSBAS能够有效将定位服务精度提升近一倍左右。

关键词(KeyWords)： 北斗星基增强系统(BDSBAS);星基增强电文;定位精度

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41874043,42004028)

作者(Author): 辛洁,郭睿,郭靖蕾,田翌君,王冬霞

DOI: 10.16251/j.cnki.1009-2307.2021.08.002

参考文献(References)：

• [1] 谭述森.北斗卫星导航系统的发展与思考[J].宇航学报，2008,29(2):391-396.(TAN Shusen.Development and thought of Compass navigation satellite system[J].Journal of Astronautics,2008,29(2):391-396.)
• [2] 陈忠贵，武向军.北斗三号卫星系统总体设计[J].南京航空航天大学学报，2020,52(6):835-845.(CHEN Zhonggui,WU Xiangjun.General design of the third generation BeiDou navigation satellite system[J].Journal of Nanjing University of Aeronautics & Astronautics,2020,52(6):835-845.)
• [3] 杨元喜，陆明泉，韩春好.GNSS互操作若干问题[J].测绘学报，2016,45(3):253-259.(YANG Yuanxi,LU Mingquan,HAN Chunhao.Some notes on interoperability of GNSS[J].Acta Geodaetica et Cartographica Sinica,2016,45(3):253-259.)
• [4] 周建华，陈俊平，张晶宇.北斗“一带一路”服务性能增强技术研究[J].中国工程科学，2019,21(4):69-75.(ZHOU Jianhua,CHEN Junping,ZHANG Jingyu.Service performance enhancement technologies for BeiDou navigation satellite system along the Belt and Road[J].Strategic Study of CAE,2019,21(4):69-75.)
• [5] 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.(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.)
• [6] 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.(CHEN Junping,ZHANG Yize,ZHOU Jianhua,et al.Zone correction:a SBAS differential correction model for BDS decimeterlevel positioning[J].Acta Geodaetica et Cartographica Sinica,2018,47(9):1161-1170.)
• [7] 王君君，李锐，程军，等.SBAS完好性评估方法研究[J].现代导航，2019,10(4):235-240.(WANG Junjun,LI Rui,CHENG Jun,et al.Research on integrity evaluation method of SBAS[J].Modern Navigation,2019,10(4):235-240.)
• [8] 刘禹彤，李锐，王君君.星基增强系统数据仿真平台设计[J].导航定位学报，2019,7(2):96-102.(LIU Yutong,LI Rui,WANG Junjun.Design of data simulation platform for satellite-based augmentation system[J].Journal of Navigation and Positioning,2019,7(2):96-102.)
• [9] PANAGIOTAKOPOULOS D,MAJUMDAR A,OCHIENG W Y.Extreme value theory-based integrity monitoring of global navigation satellite systems[J].GPS Solutions,2014,18(1):133-145.
• [10] 郭树人，刘成，高为广，等.卫星导航增强系统建设与发展[J].全球定位系统，2019,44(2):1-12.(GUO Shuren,LIU Cheng,GAO Weiguang,et al.Construction and development of satellite navigation augmentation systems[J].GNSS World of China,2019,44(2):1-12.)
• [11] 邵搏，耿永超，丁群，等.国际星基增强系统综述[J].现代导航，2017,8(3):157-161.(SHAO Bo,GENG Yongchao,DING Qun,et al.Summarize of international satellite based augmentation system[J].Modern Navigation,2017,8(3):157-161.)
• [12] 中国卫星导航系统管理办公室.北斗卫星导航系统空间信号接口控制文件：星基增强服务信号BDSBAS-B1C(1.0版本)[EB/OL].[2021-02-18].http://www.beidou.gov.cn/xt/gfxz/202008/P020200803362063969518.pdf.(China Satellite Navigation Office.BeiDou navigation satellite system signal in space interface control document:satellite based augmentation system service signal BDSBAS-B1C(version 1.0)[EB/OL].[2021-02-18].http://www.beidou.gov.cn/xt/gfxz/202008/P020200803362063969518.pdf.)
• [13] IWG.SBAS L5 DFMC interface control document(SBAS L5 DFMC ICD:version 1.4)[R].[S.l.]:[s.n.],2017.
• [14] 蔡成林，李孝辉，吴海涛，等.广域差分系统中的卫星钟差改正方法[J].科学通报，2009,54(20):3170-3176.(CAI Chenglin,LI Xiaohui,WU Haitao,et al.A satellite clock error correction method in wide area differental system [J].Chinese Science Bulletin,2009,54(20):3170-3176.)
• [15] 倪育德，张天阳.基于WAAS监测数据的精度和完好性参数解算[J].空间科学学报，2019,39(4):502-511.(NI Yude,ZHANG Tianyang.Calculation of accuracy and integrity parameters based on WAAS monitoring data[J].Chinese Journal of Space Science,2019,39(4):502-511.)