Article(id=1322571026681147536, tenantId=1146029695717560320, journalId=1281212831689347082, issueId=1322570898712937423, articleNumber=null, orderNo=null, doi=10.14075/j.jgg.2025.06.219, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1751212800000, receivedDateStr=2025-06-30, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793255104941, onlineDateStr=2026-10-29, pubDate=1778774400000, pubDateStr=2026-05-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793255104941, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793255104941, creator=13701087609, updateTime=1793255104941, updator=13701087609, issue=Issue{id=1322570898712937423, tenantId=1146029695717560320, journalId=1281212831689347082, year='2026', volume='46', issue='5', pageStart='522', pageEnd='661', issueExtLink='null', onlineDate='null', pubDate='1778774400000', pubDateStr='2026-05-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793255074432, creator='13701087609', updateTime=1793255074432, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=599, endPage=609, ext={EN=ArticleExt(id=1322571027536785553, articleId=1322571026681147536, tenantId=1146029695717560320, journalId=1281212831689347082, language=EN, title=Performance of Multi-Frequency Multi-System Precise Point Positioning with Ambiguity Resolution Based on OSB Estimation, columnId=null, journalTitle=Journal of Geodesy and Geodynamics, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Accurate estimation of phase biases is an essential prerequisite for achieving PPP ambiguity resolution (AR). We focus on the estimation methods of observable-specific signal bias (OSB) and multi-frequency multi-GNSS PPP-AR technique, and conduct experimental analysis on the combined observations from GPS, Galileo and BDS at 30 MGEX stations during March 2024. The results show that the phase and pseudorange OSB have good stability, the STD of phase OSB in different systems is less than 0.05 ns, and the consistency of different types of inter-frequency phase and pseudorange OSB of each system is good. The wide-lane/narrow-lane ambiguity resolution rates reach 98.5%/96.7% for GPS, 99.3%/98.8% for Galileo, and 95.4%/94.9% for BDS. Compared with float solutions, the convergence times of triple-frequency PPP fixed solutions are reduced by 28.37% in kinematic scenario, shortened by 31.61% in static scenario. Under static condition, average single-day solution positioning accuracy in E, N and U directions improved by 24.91%(0.71 cm), 31.22%(0.50 cm), and 18.77%(1.10 cm), respectively, demonstrating significant enhancement in positioning performance.
, authors=Jiaxing YANG
1, Xuexi LIU
1, 2, *, Zhongyuan WANG
1, Nanshan ZHENG
1, Linfeng ZHU
1, Sha LI
1, authorsList=Jiaxing YANG, Xuexi LIU, Zhongyuan WANG, Nanshan ZHENG, Linfeng ZHU, Sha LI, authorCompany=null, correspAuthors=Xuexi LIU, 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=1322571032389595304, articleId=1322571026681147536, tenantId=1146029695717560320, journalId=1281212831689347082, language=CN, title=基于OSB估计的多频多系统PPP-AR性能分析, columnId=1281909276545356011, journalTitle=大地测量与地球动力学, columnName=大地测量学, runingTitle=null, highlight=null, articleAbstract=
相位偏差的精确估计是实现PPP模糊度固定的重要前提, 本文围绕观测值特定信号偏差(OSB)估计方法与多频多系统PPP-AR技术展开研究, 对2024-03共30个MGEX站的GPS、Galileo和BDS联合观测数据进行实验分析。结果表明, 相位和伪距OSB具有良好的稳定性, 不同系统相位OSB的STD均小于0.05 ns, 各系统不同类型的频间相位和伪距OSB一致性较好。3个系统宽巷/窄巷模糊度固定率分别为98.5%/96.7%(GPS)、99.3%/98.8%(Galileo)和95.4%/94.9%(BDS); 在动态场景中联合GPS、Galileo和BDS三频PPP的固定解较浮点解收敛时间缩短28.37%, 在静态场景中缩短31.61%。在静态条件下, E、N和U三个方向单天解的平均定位精度分别提升24.91%(0.71 cm)、31.22%(0.50 cm)和18.77%(1.10 cm), 定位性能显著提升。
, authors=杨嘉兴
1, 刘学习
1, 2, *, 王中元
1, 郑南山
1, 朱麟丰
1, 李莎
1, authorsList=杨嘉兴, 刘学习, 王中元, 郑南山, 朱麟丰, 李莎, authorCompany=null, correspAuthors=刘学习, authorNote=
, correspAuthorsNote=
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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=9GymOymCrCy/3Ponl1tGUQ==, magXml=UlO7knEkcFOMDHpFcFh4SQ==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=VvuDT2+JlmNt4wsDOe4dVA==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=iL6A1hRxxeAvq8354RXKAw==, mapNumber=null, fund=null)}, authors=[Author(id=1322571032775471280, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=814257522@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322571032863551666, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, authorId=1322571032775471280, language=EN, stringName=Jiaxing YANG, firstName=Jiaxing, middleName=null, lastName=YANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=1 School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322571032934854835, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, authorId=1322571032775471280, language=CN, stringName=杨嘉兴, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=1 中国矿业大学环境与测绘学院, 徐州, 221116, bio={"content":"
杨嘉兴, 硕士生, 主要从事精密单点定位研究, E-mail: 814257522@qq.com
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杨嘉兴, 硕士生, 主要从事精密单点定位研究, E-mail: 814257522@qq.com
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1, 2, *, address=1 School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China
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Galileo phase and pseudorange OSB time series during DOY061 to DOY091, 2024, figureFileSmall=y2REy0DRw3flnk/O1BjO0Q==, figureFileBig=nScgeWgsErGxJ3Z/2ih60w==, tableContent=null), ArticleFig(id=1322571035757621473, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=CN, label=图4, caption=
Galileo 2024年DOY061—091相位与伪距OSB时间序列, figureFileSmall=y2REy0DRw3flnk/O1BjO0Q==, figureFileBig=nScgeWgsErGxJ3Z/2ih60w==, tableContent=null), ArticleFig(id=1322571035908616418, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=EN, label=Fig. 5, caption=
BDS-2 phase and pseudorange OSB time series during DOY061 to DOY091, 2024, figureFileSmall=a6XMj7VnEgVbX5O663YkvQ==, figureFileBig=0ZLt8BDahi8LyAPeulPBFg==, tableContent=null), ArticleFig(id=1322571035971530979, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=CN, label=图5, caption=
BDS-2 2024年DOY061—091相位与伪距OSB时间序列, figureFileSmall=a6XMj7VnEgVbX5O663YkvQ==, figureFileBig=0ZLt8BDahi8LyAPeulPBFg==, tableContent=null), ArticleFig(id=1322571036042834149, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=EN, label=Fig. 6, caption=
BDS-3 phase and pseudorange OSB time series during DOY061 to DOY091, 2024, figureFileSmall=TXhMWJuDgMJlbjUFqWp11Q==, figureFileBig=XaEO1/ko+5CGBGZz0Ko7/Q==, tableContent=null), ArticleFig(id=1322571036109943014, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=CN, label=图6, caption=
BDS-3 2024年DOY061—091相位与伪距OSB时间序列, figureFileSmall=TXhMWJuDgMJlbjUFqWp11Q==, figureFileBig=XaEO1/ko+5CGBGZz0Ko7/Q==, tableContent=null), ArticleFig(id=1322571036177051879, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=EN, label=Fig. 7, caption=
STD distribution of phase OSB of GPS, Galileo, BDS-2 and BDS-3 during DOY061 to DOY091, 2024, figureFileSmall=bDNLhytsm2ph+Z4NmsFuhg==, figureFileBig=fl5xGfMAphnbL3+oUIf1dw==, tableContent=null), ArticleFig(id=1322571036374184168, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=CN, label=图7, caption=
2024年DOY061—091 GPS、Galileo、BDS-2和BDS-3相位OSB的STD分布, figureFileSmall=bDNLhytsm2ph+Z4NmsFuhg==, figureFileBig=fl5xGfMAphnbL3+oUIf1dw==, tableContent=null), ArticleFig(id=1322571036437098729, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=EN, label=Fig. 8, caption=
RMS distribution of floating point ambiguities for WL/IF combination of GPS/Galileo/BDS satellites, figureFileSmall=Q5IJRmqX/Y0Kwj2gj3iE1w==, figureFileBig=kgSKJS6/pXK6fQVVBP/IkA==, tableContent=null), ArticleFig(id=1322571036541956330, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=CN, label=图8, caption=
GPS/Galileo/BDS各卫星WL/IF组合浮点模糊度RMS分布, figureFileSmall=Q5IJRmqX/Y0Kwj2gj3iE1w==, figureFileBig=kgSKJS6/pXK6fQVVBP/IkA==, tableContent=null), ArticleFig(id=1322571036625842411, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=EN, label=Fig. 9, caption=
Distribution of GPS/Galileo/BDS ambiguity residuals, figureFileSmall=9RLroRK8ntJDPLqC8C/rSQ==, figureFileBig=6G0WSt7rb4xPZo7pIltHDw==, tableContent=null), ArticleFig(id=1322571036747477228, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=CN, label=图9, caption=
GPS/Galileo/BDS模糊度残差分布, figureFileSmall=9RLroRK8ntJDPLqC8C/rSQ==, figureFileBig=6G0WSt7rb4xPZo7pIltHDw==, tableContent=null), ArticleFig(id=1322571036822974702, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=EN, label=Fig. 10, caption=
Triple-frequency dynamic and static PPP error sequences of GPS, Galileo and BDS at HARB station on DOY084, 2024, figureFileSmall=C4Guz7xDbERsUQCU28Ov1w==, figureFileBig=8JVy2fBHqt4BakvI5f0u0w==, tableContent=null), ArticleFig(id=1322571036894277871, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=CN, label=图10, caption=
HARB测站2024年DOY084 GPS、Galileo和BDS三频动静态PPP误差序列, figureFileSmall=C4Guz7xDbERsUQCU28Ov1w==, figureFileBig=8JVy2fBHqt4BakvI5f0u0w==, tableContent=null), ArticleFig(id=1322571036965581041, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=EN, label=Fig. 11, caption=
Convergence distribution and positioning accuracy of GPS, Galileo and BDS triple-frequency dynamic and static PPP during DOY061 to DOY091, 2024, figureFileSmall=I/C5HLWwykpvY4MVg+hG9w==, figureFileBig=rU1VkAgjrA0PowSyJf8T4g==, tableContent=null), ArticleFig(id=1322571037028495602, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=CN, label=图11, caption=
2024年DOY061—091 GPS、Galileo和BDS三频动静态PPP收敛分布与定位精度, figureFileSmall=I/C5HLWwykpvY4MVg+hG9w==, figureFileBig=rU1VkAgjrA0PowSyJf8T4g==, tableContent=null), ArticleFig(id=1322571037166907635, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=EN, label=Tab. 1, caption=
Comparison of signal frequencies of GNSS
, figureFileSmall=null, figureFileBig=null, tableContent=
| 频率/MHz | GPS | Galileo | BDS-2 | BDS-3 |
| 1 575.420 | L1 | E1 | | B1C |
| 1 561.098 | | | B1I | B1I |
| 1 278.750 | | E6 | | |
| 1 268.520 | | | B3I | B3I |
| 1 227.600 | L2 | | | |
| 1 207.140 | | E5b | B2I | B2b |
| 1 191.795 | | E5 | | B2 |
| 1 176.450 | L5 | E5a | | B2a |
), ArticleFig(id=1322571037234016500, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=CN, label=表1, caption=
GNSS信号频点对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 频率/MHz | GPS | Galileo | BDS-2 | BDS-3 |
| 1 575.420 | L1 | E1 | | B1C |
| 1 561.098 | | | B1I | B1I |
| 1 278.750 | | E6 | | |
| 1 268.520 | | | B3I | B3I |
| 1 227.600 | L2 | | | |
| 1 207.140 | | E5b | B2I | B2b |
| 1 191.795 | | E5 | | B2 |
| 1 176.450 | L5 | E5a | | B2a |
), ArticleFig(id=1322571037301125365, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=EN, label=Tab. 2, caption=
GNSS PPP data processing strategies
, figureFileSmall=null, figureFileBig=null, tableContent=
| 选项 | 策略 |
| 观测值与频率 | GPS:L1、L2、L5;Galileo:E1、E5a、E5;BDS:B1I、B3I、B2a |
| 测站坐标 | 通过IGS周解文件进行固定 |
| 采样时间 | 30 s |
| 截止高度角 | 7° |
| 伪距/相位OSB | DCB/FCB转换估计 |
| 卫星钟差 | WUM卫星精密钟差产品 |
| 卫星轨道 | WUM卫星精密轨道产品 |
| 电离层延迟 | 无电离层组合 |
| 对流层静力学延迟 | Saastamoinen模型 |
| 对流层湿延迟 | 随机游走估计 |
| PCO/PCV改正 | 卫星端和接收机端PCO采用IGS14.atx改正 |
| ISB | 随机游走估计 |
| Ratio | 3.0 |
| EWL/WL/NL阈值 | 0.2周/0.25周/0.25周 |
), ArticleFig(id=1322571037393400054, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=CN, label=表2, caption=
GNSS PPP数据处理策略
, figureFileSmall=null, figureFileBig=null, tableContent=
| 选项 | 策略 |
| 观测值与频率 | GPS:L1、L2、L5;Galileo:E1、E5a、E5;BDS:B1I、B3I、B2a |
| 测站坐标 | 通过IGS周解文件进行固定 |
| 采样时间 | 30 s |
| 截止高度角 | 7° |
| 伪距/相位OSB | DCB/FCB转换估计 |
| 卫星钟差 | WUM卫星精密钟差产品 |
| 卫星轨道 | WUM卫星精密轨道产品 |
| 电离层延迟 | 无电离层组合 |
| 对流层静力学延迟 | Saastamoinen模型 |
| 对流层湿延迟 | 随机游走估计 |
| PCO/PCV改正 | 卫星端和接收机端PCO采用IGS14.atx改正 |
| ISB | 随机游走估计 |
| Ratio | 3.0 |
| EWL/WL/NL阈值 | 0.2周/0.25周/0.25周 |
), ArticleFig(id=1322571037468897527, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=EN, label=Tab. 3, caption=
Percentage of average width and narrow lane ambiguity resolution at each station
, figureFileSmall=null, figureFileBig=null, tableContent=
| 系统 | 宽巷模糊度固定率/% | 窄巷模糊度固定率/% |
| GPS | 98.5 | 96.7 |
| Galileo | 99.3 | 98.8 |
| BDS | 95.4 | 94.9 |
), ArticleFig(id=1322571037531812088, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322571026681147536, language=CN, label=表3, caption=
各测站平均宽窄巷模糊度固定百分比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 系统 | 宽巷模糊度固定率/% | 窄巷模糊度固定率/% |
| GPS | 98.5 | 96.7 |
| Galileo | 99.3 | 98.8 |
| BDS | 95.4 | 94.9 |
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