Article(id=1322916804858884360, tenantId=1146029695717560320, journalId=1281212831689347082, issueId=1322916705915249052, articleNumber=null, orderNo=null, doi=10.14075/j.jgg.2025.11.367, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1762099200000, receivedDateStr=2025-11-03, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793337544884, onlineDateStr=2026-10-30, pubDate=1784044800000, pubDateStr=2026-07-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793337544884, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793337544884, creator=13701087609, updateTime=1793337544884, updator=13701087609, issue=Issue{id=1322916705915249052, tenantId=1146029695717560320, journalId=1281212831689347082, year='2026', volume='46', issue='7', pageStart='790', pageEnd='912', issueExtLink='null', onlineDate='null', pubDate='1784044800000', pubDateStr='2026-07-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793337521294, creator='13701087609', updateTime=1793337521294, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=790, endPage=797, ext={EN=ArticleExt(id=1322916805148291337, articleId=1322916804858884360, tenantId=1146029695717560320, journalId=1281212831689347082, language=EN, title=Comparion of BDS-3 and GPS Positioning Accuracy across Spatial Scales, columnId=null, journalTitle=Journal of Geodesy and Geodynamics, columnName=null, runingTitle=null, highlight=null, articleAbstract=
To assess the performance of BDS-3 and promote its application optimization, this study processed long-term observation data from 56 global IGS stations and 50 reference stations in mainland China from DOY 001, 2023 to DOY 067, 2025 using the GAMIT/GLOBK 10.71 software. The long-term positioning accuracy of BDS-3 and GPS was compared and analyzed at both global and regional scales across four dimensions: ambiguity fixed rate, satellite orbit accuracy, coordinate time series, and velocity field. The results indicate that the average narrow-lane ambiguity fixed rate of BDS-3 in the global network (72.7%) is lower than that of GPS (88.1%), but it performs better in the regional network (BDS-3: 80.1%, GPS: 76.2%). In terms of satellite orbit accuracy, the orbit integration residuals of BDS-3 are on average 1.5—2.8 mm higher than those of GPS. Analysis of coordinate time series shows that the average WRMS values for BDS-3 in the N, E, and U directions (2.44 mm, 2.8 mm, 7.0 mm) are higher than those of GPS (1.7 mm, 1.8 mm, 5.7 mm), with greater dispersion in the vertical direction. However, comparison of the velocity fields reveals a high consistency between the two systems (90% of stations exhibit rate differences within 1 mm/a). The study demonstrates that the positioning performance of BDS-3 at the regional scale is close to that of GPS, but its global accuracy and stability still require improvement. Future efforts should focus on enhancing models, optimizing algorithms, and advancing research on multi-system integration.
, authors=Dongzhen WANG
1, 2, Bin ZHAO
1, 2, Yuebing WANG
3, Mu LIN
1, 2, Jiansheng YU
1, 2, authorsList=Dongzhen WANG, Bin ZHAO, Yuebing WANG, Mu LIN, Jiansheng YU, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=
All rights reserved. Unauthorized reproduction is prohibited., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322916807086059800, articleId=1322916804858884360, tenantId=1146029695717560320, journalId=1281212831689347082, language=CN, title=BDS-3与GPS的长期定位精度对比, columnId=1281909276545356011, journalTitle=大地测量与地球动力学, columnName=大地测量学, runingTitle=null, highlight=null, articleAbstract=
为评估BDS-3性能并推动其应用优化,基于GAMIT/GLOBK 10.71软件处理2023年DOY001—2025年DOY067全球56个IGS站点及中国大陆50个基准站的长时段数据,从模糊度固定率、卫星轨道精度、坐标时间序列和速度场4个维度,对比分析BDS-3与GPS在全球及区域尺度下的长期定位精度。结果表明,BDS-3在全球网中的窄巷模糊度固定率均值(72.7%)低于GPS(88.1%),但在区域网中表现更优(BDS-3为80.1%,GPS为76.2%)。卫星轨道精度方面,BDS-3的轨道积分残差参数平均高于GPS约1.5~2.8 mm。坐标时间序列分析表明,BDS-3在N、E、U方向的坐标时间序列平均WRMS值(2.44 mm、2.8 mm、7.0 mm)高于GPS(1.7 mm、1.8 mm、5.7 mm),且U方向离散度更大,但速度场比较显示,两者一致性较高(90%站点速率差在1 mm/a以内)。研究表明,BDS-3在区域尺度定位性能接近GPS,但全球精度和稳定性仍需提升,未来需加强模型、算法优化和多系统融合研究。
, authors=王东振
1, 2, 赵斌
1, 2, 王阅兵
3, 林牧
1, 2, 余建胜
1, 2, authorsList=王东振, 赵斌, 王阅兵, 林牧, 余建胜, authorCompany=null, correspAuthors=null, authorNote=
, correspAuthorsNote=null, copyrightStatement=
版权所有,未经授权,不得转载。, copyrightOwner=大地测量与地球动力学编辑部, extLink=null, articleAbsUrl=null, sourceXml=qFrTZSFUeyILUfDeOnb8TA==, magXml=9EMVw08lzkUw79BOMqAdVw==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=oG36h61NV+5UF/WsKudxxA==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=w2hvb95BjUBoqeSfYlHwaw==, mapNumber=null, fund=null)}, authors=[Author(id=1322916809212571939, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322916804858884360, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=dzwang@cgps.ac.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322916809292263718, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322916804858884360, authorId=1322916809212571939, language=EN, stringName=Dongzhen WANG, firstName=Dongzhen, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=1 Institute of Seismology, CEA, Wuhan 430071, China
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1, 2, address=1 中国地震局地震研究所,武汉,430071
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王东振,副研究员,主要研究方向为北斗/GNSS高精度解算及三维地壳形变,E-mail:dzwang@cgps.ac.cn
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王东振,副研究员,主要研究方向为北斗/GNSS高精度解算及三维地壳形变,E-mail:dzwang@cgps.ac.cn
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1, 2, address=1 中国地震局地震研究所,武汉,430071
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3, address=3 China Earthquake Networks Center, CEA, Beijing 100045, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322916809845911858, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322916804858884360, authorId=1322916809694916911, language=CN, stringName=王阅兵, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1, 2, address=1 Institute of Seismology, CEA, Wuhan 430071, China
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1, 2, address=1 中国地震局地震研究所,武汉,430071
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1, 2, address=1 Institute of Seismology, CEA, Wuhan 430071, China
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1, 2, address=1 中国地震局地震研究所,武汉,430071
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Distribution of GNSS stations, figureFileSmall=vs9KsDkg5zIGmZh6sr+eHQ==, figureFileBig=oG36h61NV+5UF/WsKudxxA==, tableContent=null), ArticleFig(id=1322916811330695498, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322916804858884360, language=CN, label=图1, caption=
GNSS站点分布 蓝色和黄色三角形表示IGS站点, 红色三角形表示中国大陆GNSS基准站
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WL and NL ambiguity resolution rates under different scales, figureFileSmall=yEHVwOGnBFbCW9SIOi/BfQ==, figureFileBig=kxzv34mek2KbYHwONvX40Q==, tableContent=null), ArticleFig(id=1322916813234909516, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322916804858884360, language=CN, label=图2, caption=
不同尺度下的宽巷和窄巷模糊度固定率, figureFileSmall=yEHVwOGnBFbCW9SIOi/BfQ==, figureFileBig=kxzv34mek2KbYHwONvX40Q==, tableContent=null), ArticleFig(id=1322916813331378509, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322916804858884360, language=EN, label=Fig. 3, caption=
Residual time series of satellite orbit integration parameters, figureFileSmall=+CwLVv8DthXPvA8gYWBuBA==, figureFileBig=CekYGhCui/s4vlKR3W5KLw==, tableContent=null), ArticleFig(id=1322916813419458894, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322916804858884360, language=CN, label=图3, caption=
卫星轨道积分参数残差时间序列, figureFileSmall=+CwLVv8DthXPvA8gYWBuBA==, figureFileBig=CekYGhCui/s4vlKR3W5KLw==, tableContent=null), ArticleFig(id=1322916813499150671, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322916804858884360, language=EN, label=Fig. 4, caption=
Coordinate time series of BDS-3 and GPS at AKSN and THYN stations, figureFileSmall=tFcEyTbTp+ZR3jemqHvJvg==, figureFileBig=nymqDTZUKiACHzGlTqJlxg==, tableContent=null), ArticleFig(id=1322916813566259536, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322916804858884360, language=CN, label=图4, caption=
AKSN和THYN站点BDS-3和GPS坐标时间序列 红色圆点为北斗结果, 蓝色圆点为GPS结果, 灰色细线为误差棒, BDS_WRMS表示北斗坐标时序的WRMS值, GPS_WRMS表示GPS坐标时序的WRMS值
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WRMS values of coordinate time series in N, E, U directions for BDS-3 and GPS at global and regional stations, figureFileSmall=Z4SNwfTpjzj5xQjnTjBBiw==, figureFileBig=gMbNLVP8AwyVNt5jZRs5qw==, tableContent=null), ArticleFig(id=1322916813713060178, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322916804858884360, language=CN, label=图5, caption=
全球和区域站点的BDS-3和GPS在N、E、U方向坐标时间序列的WRMS值, figureFileSmall=Z4SNwfTpjzj5xQjnTjBBiw==, figureFileBig=gMbNLVP8AwyVNt5jZRs5qw==, tableContent=null), ArticleFig(id=1322916813792751955, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322916804858884360, language=EN, label=Fig. 6, caption=
Statistical results of WRMS values for BDS-3 and GPS coordinate time series in N, E, U directions at global and regional network stations, figureFileSmall=a8jOolMtDwOytvdjug3PoA==, figureFileBig=tQVtUVjIy7RLzj87YUSUVQ==, tableContent=null), ArticleFig(id=1322916813876638036, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322916804858884360, language=CN, label=图6, caption=
全球和区域站点的BDS-3和GPS在N、E、U方向坐标时间序列的WRMS值的统计结果 图中蓝色柱子表示全球网站点结果, 红色柱子表示区域网站点结果
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Comparation of BDS-3 and GPS velocity fields in global and regional networks, figureFileSmall=G+fcL5ZtJLPIUngWtdz6Vw==, figureFileBig=AUHfMHQ9SCl77lXiVKFa1Q==, tableContent=null), ArticleFig(id=1322916814044410198, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322916804858884360, language=CN, label=图7, caption=
全球网和区域网的BDS-3和GPS速度场对比, figureFileSmall=G+fcL5ZtJLPIUngWtdz6Vw==, figureFileBig=AUHfMHQ9SCl77lXiVKFa1Q==, tableContent=null), ArticleFig(id=1322916814107324759, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322916804858884360, language=EN, label=Tab. 1, caption=
GNSS data processing strategies and models
, figureFileSmall=null, figureFileBig=null, tableContent=
| 改正项 | 改正模型 |
| 天线相位中心偏差改正 | IGS20绝对天线相位中心 |
| 码偏差 | dcb.dat |
| 固体潮 | IERS2010 |
| 极潮 | IERS2010 |
| 海潮 | FES2004 |
| 天顶静力学延迟映射函数 | VMF1 |
| 天顶湿延迟映射函数 | VMF1 |
| 温度气压模型 | GPT3 |
| 光压模型 | BERNE |
| 惯性参考框架 | J2000 |
| 重力场模型 | EGM08 |
| 观测值定权 | 以高度角定权 |
), ArticleFig(id=1322916814182822232, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322916804858884360, language=CN, label=表1, caption=
GNSS数据处理策略与模型
, figureFileSmall=null, figureFileBig=null, tableContent=
| 改正项 | 改正模型 |
| 天线相位中心偏差改正 | IGS20绝对天线相位中心 |
| 码偏差 | dcb.dat |
| 固体潮 | IERS2010 |
| 极潮 | IERS2010 |
| 海潮 | FES2004 |
| 天顶静力学延迟映射函数 | VMF1 |
| 天顶湿延迟映射函数 | VMF1 |
| 温度气压模型 | GPT3 |
| 光压模型 | BERNE |
| 惯性参考框架 | J2000 |
| 重力场模型 | EGM08 |
| 观测值定权 | 以高度角定权 |
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