Article(id=1322940732901831551, tenantId=1146029695717560320, journalId=1281212831689347082, issueId=1322940717152215106, articleNumber=null, orderNo=null, doi=10.14075/j.jgg.2024.05.207, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1714838400000, receivedDateStr=2024-05-05, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343249774, onlineDateStr=2026-10-30, pubDate=1744646400000, pubDateStr=2025-04-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343249774, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343249774, creator=13701087609, updateTime=1793343249774, updator=13701087609, issue=Issue{id=1322940717152215106, tenantId=1146029695717560320, journalId=1281212831689347082, year='2025', volume='45', issue='4', pageStart='331', pageEnd='440', issueExtLink='null', onlineDate='null', pubDate='1744646400000', pubDateStr='2025-04-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793343246019, creator='13701087609', updateTime=1793343246019, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=351, endPage=355, ext={EN=ArticleExt(id=1322940734109791104, articleId=1322940732901831551, tenantId=1146029695717560320, journalId=1281212831689347082, language=EN, title=A Method for Calculating the Integrity Risk of RAIM under Multiple Fault Conditions, columnId=null, journalTitle=Journal of Geodesy and Geodynamics, columnName=null, runingTitle=null, highlight=null, articleAbstract=
This paper proposes a method that can calculate the integrity risk of RAIM under multiple fault conditions. This method is based on constructing a chi-square test statistic using least squares residuals for fault detection, and further calculates the integrity risk by searching for the worst case fault vector under multiple fault modes based on the probability distribution of the test statistic and positioning error. The actual experimental results show that the proposed method can effectively monitor the integrity risk of multiple faults, achieve risk alarms during periods of poor observation geometry, and ensure reliable user positioning. Under the integrity requirements of the aviation LPV-200 phase, the availability of user positioning results reached 99.47%.
, authors=Jun CAO
1, Bing XUE
2, 3, *, Yunbin YUAN
4, Zelin DAI
1, Yifan WANG
1, authorsList=Jun CAO, Bing XUE, Yunbin YUAN, Zelin DAI, Yifan WANG, authorCompany=null, correspAuthors=Bing XUE, authorNote=
CAO Jun, assistant engineer, majors in high-precision positioning and application of Beidou/GNSS, power grid disaster prevention and reduction, and lightning protection, E-mail: 2297271724@qq.com
, 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=1322940740027954070, articleId=1322940732901831551, tenantId=1146029695717560320, journalId=1281212831689347082, language=CN, title=一种多故障条件下RAIM完好性风险计算方法, columnId=1322506169105633839, journalTitle=大地测量与地球动力学, columnName=现代大地测量, runingTitle=null, highlight=null, articleAbstract=
提出一种多故障条件下RAIM完好性风险计算方法。该方法基于最小二乘残差构建卡方检验统计量进行故障检测,并进一步根据检验统计量和定位误差的概率分布,通过搜索多个故障模式下最差情况故障向量实现完好性风险计算。实验结果表明,该方法能够有效监测多故障完好性风险,在观测几何较差时段实现风险告警,保障用户定位可靠。在航空LPV-200阶段的完好性需求下,用户定位结果的可用性达到99.47%。
, authors=曹俊
1, 薛兵
2, 3, *, 袁运斌
4, 代泽林
1, 王一帆
1, authorsList=曹俊, 薛兵, 袁运斌, 代泽林, 王一帆, authorCompany=null, correspAuthors=薛兵, authorNote=
, correspAuthorsNote=
薛兵, 博士, 讲师, 主要研究方向为GNSS精密定位及完好性监测, E-mail: 1076828585@qq.com
XUE Bing, PhD, lecturer, majors in GNSS precision positioning and integrity monitoring, E-mail: 1076828585@qq.com
, 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=LE3aih3rSTP3SnoWMcILYA==, magXml=wH3b+/rUPMUQJIYv1H6vFQ==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=FOb52see+cR3zU1BzGtQ8A==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=YK7KIX6D6joWua+RtHRv5g==, mapNumber=null, fund=null)}, authors=[Author(id=1322940743563752362, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=2297271724@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322940743781856174, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, authorId=1322940743563752362, language=EN, stringName=Jun CAO, firstName=Jun, middleName=null, lastName=CAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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曹俊, 助理工程师, 主要研究方向为北斗/GNSS高精度定位及应用、电网防灾减灾及雷害防护, E-mail: 2297271724@qq.com
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Integrity risk calculation process, figureFileSmall=VGi5GoKFwsAc8v0KVRvHfw==, figureFileBig=FOb52see+cR3zU1BzGtQ8A==, tableContent=null), ArticleFig(id=1322940748076823511, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, language=CN, label=图1, caption=
完好性风险计算流程, figureFileSmall=VGi5GoKFwsAc8v0KVRvHfw==, figureFileBig=FOb52see+cR3zU1BzGtQ8A==, tableContent=null), ArticleFig(id=1322940748303315932, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, language=EN, label=Fig. 2, caption=
Three-dimensional flight trajectory of the unmanned aerial vehicle, figureFileSmall=NvHo22m9BuGM2Z7k5lTlag==, figureFileBig=Nn8x9lehO+uG/gvTzqCMxg==, tableContent=null), ArticleFig(id=1322940748391396317, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, language=CN, label=图2, caption=
无人机飞行三维轨迹, figureFileSmall=NvHo22m9BuGM2Z7k5lTlag==, figureFileBig=Nn8x9lehO+uG/gvTzqCMxg==, tableContent=null), ArticleFig(id=1322940748471088094, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, language=EN, label=Fig. 3, caption=
Numbers of available satellites and VDOP, figureFileSmall=n0Dcn657DrbSXkpLi455Fg==, figureFileBig=LLhJaF7Nyeun8x84ozP/Vw==, tableContent=null), ArticleFig(id=1322940748580140001, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, language=CN, label=图3, caption=
可用卫星数目和VDOP, figureFileSmall=n0Dcn657DrbSXkpLi455Fg==, figureFileBig=LLhJaF7Nyeun8x84ozP/Vw==, tableContent=null), ArticleFig(id=1322940748651443170, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, language=EN, label=Fig. 4, caption=
Time series for testing statistics and absolute values of vertical positioning errors, figureFileSmall=2obrmerxEJjAix8GsJEk2w==, figureFileBig=QqcCGtamdXOLXHJR2xpVxQ==, tableContent=null), ArticleFig(id=1322940748743717859, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, language=CN, label=图4, caption=
检验统计量和垂向定位误差绝对值时间序列, figureFileSmall=2obrmerxEJjAix8GsJEk2w==, figureFileBig=QqcCGtamdXOLXHJR2xpVxQ==, tableContent=null), ArticleFig(id=1322940748815021028, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, language=EN, label=Fig. 5, caption=
The calculated integrity risk, figureFileSmall=qzy94H82dQ2lHwyWiim2fg==, figureFileBig=103dLHLEY+OHmElGFrSLpA==, tableContent=null), ArticleFig(id=1322940748911490021, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, language=CN, label=图5, caption=
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Integrity risk monitoring performance, figureFileSmall=gs4OsE6L3jl746VPsxCC2g==, figureFileBig=TaIlFc+uA8lK2vhqm7SgeQ==, tableContent=null), ArticleFig(id=1322940749163148264, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, language=CN, label=图6, caption=
完好性风险监测性能, figureFileSmall=gs4OsE6L3jl746VPsxCC2g==, figureFileBig=TaIlFc+uA8lK2vhqm7SgeQ==, tableContent=null), ArticleFig(id=1322940749268005866, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, language=EN, label=Tab. 1, caption=
Parameters configuration
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| 选项 | 配置 |
| 导航系统 | GPS+BDS |
| 信号频率 | L1、L2 |
| 截止高度角θ/(°) | 5 |
| 对流层改正 | SBAS模型 |
| 广播星历误差标准差σURA/m | 2.4 |
| 对流层模型改正误差标准差σtrop/m | $0.12 \times \frac{1.001}{\sqrt{0.002001+\sin ^2 \theta}}$ |
| 用户误差标准差σuser/m | $\sqrt{\frac{f_1^4+f_2^4}{\left(f_1^2+f_1^2\right)^2}} \sqrt{\left(\sigma_{\mathrm{MP}}^2+\sigma_{\text {noise }}^2\right)}$ |
| 多路径误差标准差σMP/m | 0.13+0.53×exp(-θ/10°) |
| 接收机噪声标准差σnoise/m | 0.15+0.43×exp(-θ/6.9°) |
| 卫星故障先验概率Pfault | 1×10-5 |
| 连续性风险需求值Pfa | 3.9×10-6 |
| 完好性风险需求值Preq | 1×10-7 |
| 未评估的完好性风险预算Pob | 6×10-8 |
| 垂向定位误差限值VAL/m | 35 |
), ArticleFig(id=1322940749330920427, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, language=CN, label=表1, caption=
参数配置
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| 选项 | 配置 |
| 导航系统 | GPS+BDS |
| 信号频率 | L1、L2 |
| 截止高度角θ/(°) | 5 |
| 对流层改正 | SBAS模型 |
| 广播星历误差标准差σURA/m | 2.4 |
| 对流层模型改正误差标准差σtrop/m | $0.12 \times \frac{1.001}{\sqrt{0.002001+\sin ^2 \theta}}$ |
| 用户误差标准差σuser/m | $\sqrt{\frac{f_1^4+f_2^4}{\left(f_1^2+f_1^2\right)^2}} \sqrt{\left(\sigma_{\mathrm{MP}}^2+\sigma_{\text {noise }}^2\right)}$ |
| 多路径误差标准差σMP/m | 0.13+0.53×exp(-θ/10°) |
| 接收机噪声标准差σnoise/m | 0.15+0.43×exp(-θ/6.9°) |
| 卫星故障先验概率Pfault | 1×10-5 |
| 连续性风险需求值Pfa | 3.9×10-6 |
| 完好性风险需求值Preq | 1×10-7 |
| 未评估的完好性风险预算Pob | 6×10-8 |
| 垂向定位误差限值VAL/m | 35 |
), ArticleFig(id=1322940749590967276, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, language=EN, label=Tab. 2, caption=
Statistics of integrity risk monitoring performance
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| 指标 | 误导 | 告警 | 危险误导 | 正常 |
| 样本量 | 404 | 0 | 0 | 75 705 |
| 占比 | 0.53% | 0 | 0 | 99.47% |
), ArticleFig(id=1322940749700019181, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322940732901831551, language=CN, label=表2, caption=
完好性风险监测性能统计
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| 指标 | 误导 | 告警 | 危险误导 | 正常 |
| 样本量 | 404 | 0 | 0 | 75 705 |
| 占比 | 0.53% | 0 | 0 | 99.47% |
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