Preliminary Performance Evaluation of Integrity Service for Real-Time Precise Satellite Orbit and Clock

WANG Liuqi; LI Liang; CHEN Lei; WANG Ningbo; LI Zishen; MA Weitianhua; LI Min; LIU Xue

doi:10.13203/j.whugis20240396

您当前的位置：

首页 >

文章列表页 >

Preliminary Performance Evaluation of Integrity Service for Real-Time Precise Satellite Orbit and Clock

Geodesy and Survey Engineering | 更新时间：2026-11-05

- Preliminary Performance Evaluation of Integrity Service for Real-Time Precise Satellite Orbit and Clock
- Geomatics and Information Science of Wuhan University Vol. 51, Issue 7, Pages: 1372-1383(2026)
- 作者机构：
  
  1.哈尔滨工程大学智能科学与工程学院，黑龙江哈尔滨，150001
  2.北京跟踪与通信技术研究所，北京，100094
  3.中国科学院空天信息创新研究院，北京，100094
  4.齐鲁空天信息创新研究院，山东济南，250132
- 作者简介：
- 基金信息：
- DOI：10.13203/j.whugis20240396
  CLC： P228
- Received：27 January 2025，
  
  Published：05 July 2026
- 稿件说明：
移动端阅览
王柳淇,李亮,陈雷，等.实时精密卫星钟轨完好性服务初步性能评估[J].武汉大学学报（信息科学版）,2026,51(7):1372-1383.

WANG Liuqi,LI Liang,CHEN Lei,et al.Preliminary Performance Evaluation of Integrity Service for Real-Time Precise Satellite Orbit and Clock[J].Geomatics and Information Science of Wuhan University,2026,51(7):1372-1383.
王柳淇,李亮,陈雷，等.实时精密卫星钟轨完好性服务初步性能评估[J].武汉大学学报（信息科学版）,2026,51(7):1372-1383. DOI：10.13203/j.whugis20240396

WANG Liuqi,LI Liang,CHEN Lei,et al.Preliminary Performance Evaluation of Integrity Service for Real-Time Precise Satellite Orbit and Clock[J].Geomatics and Information Science of Wuhan University,2026,51(7):1372-1383. DOI：10.13203/j.whugis20240396

摘要

实时精密卫星钟轨修正产品是实时精密单点定位（real-time precise point positioning，RT-PPP）的基础支撑信息，卫星钟轨修正产品异常将导致RT-PPP导航定位结果不再可靠，严重制约RT-PPP在生命安全相关领域的应用。传统针对RT-PPP完好性监测的研究主要关注于用户终端，要求用户终端承担较多的完好性预算并具备较强的计算能力，未完全发挥云端主控站在实时完好性监测层级的作用。针对此，构建播发前-播发后协同的实时精密卫星钟轨完好性服务架构，通过多站联合的异常检测与完好性边界评估，生成满足完好性风险与连续性风险需求的完好性信息，并实时播发给服务用户，形成实时精密卫星钟轨完好性服务。基于所构建山东省完好性监测站网实时数据流，提供实时精密卫星钟轨完好性服务，并以欧洲定轨中心产品为参考，评估完好性服务性能。实验结果表明，播发实时卫星钟轨质量标识可有效刻画实时卫星钟轨修正产品误差，完好性监测的可用性优于99.99%。

Abstract

Objectives

Integrity monitoring is essential for ensuring the reliability of real-time precise point positioning. Traditional studies mainly focus on user-level integrity monitoring

whereas the master station is primarily responsible for determining the integrity parameters required for user-level integrity monitoring. This approach places a substantial integrity-monitoring burden on users and requires considerable computational resources

thereby failing to fully exploit the role of the master station in integrity monitoring. Currently

several analysis centers publicly provide real-time precise satellite orbit and clock correction products. The standard defined by radio technical commission for maritime services (RTCM) has reserved message fields for broadcasting the integrity information of satellite orbit and clock correction products. However

to the best of our knowledge

no analysis center currently provides public integrity services for real-time precise satellite orbit and clock correction products.

Methods

This paper develops a pre- and post-broadcast integrity monitoring architecture for real-time precise satellite orbit and clock correction products. First

a quality indicator is determined using the cumulative distribution function overbounding approach. Then

a multi-station cooperative monitoring strategy

including fault detection and integrity bound evaluation

is developed. The quality indicator is evaluated to ensure compliance with the required integrity and continuity risk requirements. Finally

the integrity information is encoded into RTCM messages and broadcast to users through networked transport of RTCM via internet protocol.

Results

Based on the data stream from the integrity monitoring network established in Shandong Province and the real-time correction products provided by Centre National d'Études Spatiales

integrity services for real-time precise satellite orbit and clock correction products are generated. The performance of the proposed integrity service is preliminarily evaluated using the final satellite orbit and clock products provided by Center for Orbit Determination in Europe as the reference. The experimental results show that the availability of integrity monitoring for real-time precise satellite orbit and clock correction products exceeds 99.99%.

Conclusions

The quality indicator provided by the proposed integrity service can effectively characterize the errors in real-time precise satellite orbit and clock correction products.

关键词

Keywords

references

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 .

GUNNING K ， BLANCH J ， WALTER T ， et al . Design and Evaluation of Integrity Algorithms for PPP in Kinematic Applications ［C］// International Technical Meeting of the Satellite Division of the Institute of Navigation ， Miami， Florida， USA， 2018 .

李博峰，苗维凯，陈广鄂 . 多频多模GNSS高精度定位关键技术与挑战［J］. 武汉大学学报（信息科学版）， 2023 ， 48 （ 11 ）： 1769 - 1783 .

LI Bofeng ， MIAO Weikai ， CHEN Guang'e . Key Technologies and Challenges of Multi-Frequency and Multi-GNSS High-Precision Positioning ［J］. Geomatics and Information Science of Wuhan University ， 2023 ， 48 （ 11 ）： 1769 - 1783 .

DU Y J ， WANG J L ， RIZOS C ， et al . Vulnerabilities and Integrity of Precise Point Positioning for Intelligent Transport Systems： Overview and Analysis ［J］. Satellite Navigation ， 2021 ， 2 （ 1 ）： 3 .

ZHANG J ， ZHAO L ， YANG F X ， et al . Integrity Monitoring for Undifferenced and Uncombined PPP Under Local Environmental Conditions ［J］. Measurement Science and Technology ， 2022 ， 33 （ 6 ）： 065010 .

LI L ， JIA C ， ZHAO L ， et al . Integrity Monitoring-Based Ambiguity Validation for Triple-Carrier Ambiguity Resolution ［J］. GPS Solutions ， 2017 ， 21 （ 2 ）： 797 - 810 .

LI L ， LI R J ， WANG L Q ， et al . GNSS Integrity Risk Evaluation in the Position Domain Based on the Generalized Pareto Distribution ［J］. Measurement Science and Technology ， 2023 ， 34 （ 9 ）： 095010 .

李宗义，汪亮，王宁波，等 . CAS实时轨道和钟差产品的性能评估及完好性支持信息估计［J］. 武汉大学学报（信息科学版）， 2025 ， 50 （ 9 ）： 1825 - 1837 .

LI Zongyi ， WANG Liang ， WANG Ningbo ， et al . Performance Assessment and Integrity Support Information Estimation of CAS Real-Time Orbits and Clocks Products ［J］. Geomatics and Information Science of Wuhan University ， 2025 ， 50 （ 9 ）： 1825 - 1837 .

苏春阳，舒宝，郑蕾，等 . GPS/BDS实时SSR产品质量评估及其PPP性能分析［J］. 武汉大学学报（信息科学版）， 2025 ， 50 （ 4 ）： 714 - 726 .

SU Chunyang ， SHU Bao ， ZHENG Lei ， et al . Quality Evaluation and PPP Performance Analysis of GPS/BDS Real-Time SSR Products ［J］. Geomatics and Information Science of Wuhan University ， 2025 ， 50 （ 4 ）： 714 - 726 .

WANG S Z ， ZHAI Y W ， ZHAN X Q . Characterizing BDS Signal-in-Space Performance from Integrity Perspective ［J］. NAVIGATION ， 2021 ， 68 （ 1 ）： 157 - 183 .

JI R ， JIANG X Y ， CHEN X H ， et al . Quality Monitoring of Real-Time GNSS Precise Positioning Service System ［J］. Geo-spatial Information Science ， 2023 ， 26 （ 1 ）： 1 - 15 .

LI X X ， LIANG D ， LI X ， et al . Quality Monitoring of Real-Time PPP Service Using Isolation Forest-Based Residual Anomaly Detection ［J］. GPS Solutions ， 2024 ， 28 （ 3 ）： 118 .

XUE Y ， ZHENG F ， ZHOU G Y ， et al . A New Quality Monitoring Method for Real-Time Precise Orbit and Clock Products ［J］. GPS Solutions ， 2024 ， 28 （ 3 ）： 125 .

LAI Y F ， BLANCH J ， WALTER T ， et al . Prototyping Integrity Monitors for PPP Fault Detections ［C］// International Technical Meeting of the Satellite Division of the Institute of Navigation ， Denver， USA ， 2023 .

WEINBACH U ， BRANDL M ， CHEN X M ， et al . Integrity of the Trimble ® CenterPoint RTX Correction S ervice ［C］// International Technical Meeting of the Satellite Division of the Institute of Navigation ， Miami， USA ， 2018 .

李亮，王柳淇，王宁波，等 . PPP-RTK修正产品矢量化完好性监测方法［J］. 测绘学报， 2024 ， 53 （ 9 ）： 1777 - 1789 .

LI Liang ， WANG Liuqi ， WANG Ningbo ， et al . Vectorized Integrity Monitoring Method for PPP-RTK Correction Products ［J］. Acta Geodaetica et Cartographica Sinica ， 2024 ， 53 （ 9 ）： 1777 - 1789 .

DAI X L ， GONG X P ， LI C L ， et al . Real-Time Precise Orbit and Clock Estimation of Multi-GNSS Satellites with Undifferenced Ambiguity Resolution ［J］. Journal of Geodesy ， 2022 ， 96 （ 10 ）： 73 .

WANG Y C ， SHEN J . Real-Time Integrity Monitoring for a Wide Area Precise Positioning System ［J］. Satellite Navigation ， 2020 ， 1 （ 1 ）： 24 .

HUANG J D ， LI X X ， LI X ， et al . Real-Time Outlier Detection of Satellite Orbit and Clock Products Using Reverse Error Estimation ［J］. GPS Solutions ， 2024 ， 29 （ 1 ）： 2 .

LI L ， LIU X S ， JIA C ， et al . Integrity Monitoring of Carrier Phase-Based Ephemeris Fault Detection ［J］. GPS Solutions ， 2020 ， 24 （ 2 ）： 43 .

HUANG W Q ， LI M H ， LI L ， et al . Characterizing the Fault Performance of Real-Time Precise Satellite Orbit and Clock Correction Products ［J］. Measurement Science and Technology ， 2024 ， 35 （ 2 ）： 025033 .

WANG K ， EL-MOWAFY A ， RIZOS C . Integrity Monitoring for Precise Orbit Determination of LEO Satellites ［J］. GPS Solutions ， 2021 ， 26 （ 1 ）： 32 .

ZHAO J J ， HERNÁNDEZ-PAJARES M ， LI Z S ， et al . Integrity Investigation of Global Ionospheric TEC Maps for High-Precision Positioning ［J］. Journal of Geodesy ， 2021 ， 95 （ 3 ）： 35 .

ZHANG J ， YANG F X ， LI L ， et al . Integrity Monitoring for Real-Time Orbit Corrections Based on Prior Statistic Parameters ［C］// International Technical Meeting of the Institute of Navigation ， Long Beach， USA ， 2023 .

WALTER T ， BLANCH J . Improved User Position Monitor for WAAS ［J］. NAVIGATION ， 2017 ， 64 （ 1 ）： 165 - 175 .

WALTER T ， SHALLBERG K ， ALTSHULER E ， et al . WAAS at 15 ［J］. NAVIGATION ， 2018 ， 65 （ 4 ）： 581 - 600 .

WU T ， PECK S . An Analysis of Satellite Integrity Monitoring Improvement for WAAS ［C］// International Technical Meeting of the Satellite Division of the Institute of Navigation ， Portland， USA ， 2002 .

SCHEMPP T ， PECK S ， FRIES R . WAAS Algorithm Contribution to Hazardously Misleading Information （HMI）［C］// International Technical Meeting of the Satellite Division of the Institute of Navigation ， Salt Lake City， USA ， 2001 .

BLANCH J ， WALTER T ， ENGE P . A MATLAB Toolset to Determine Strict Gaussian Bounding Distributions of a Sample Distribution ［C］// International Technical Meeting of the Satellite Division of the Institute of Navigation ， Portland， USA ， 2017 .

RTCM Standard 10403.3：2016 Differential GNSS （Global Navigation Satellite Systems） Services Version 3 ［S］.

LI R J ， LI L ， JIANG J C ， et al . Improved Protection Level for the Solution-Separation ARAIM Based on Worst-Case Fault Bias Searching ［J］. Measurement Science and Technology ， 2024 ， 35 （ 4 ）： 046303 .

JOERGER M ， PERVAN B . Kalman Filter-Based Integrity Monitoring Against Sensor Faults ［J］. Journal of Guidance， Control， and Dynamics ， 2013 ， 36 （ 2 ）： 349 - 361 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

A Framework for Evaluating Geospatial Cognitive Abilities of Multimodal Large Language Models for Brain-Inspired Spatial Intelligence

Three-State Fusion Support Problem of Marine Geographic Information for Ship Navigation

Spatiotemporal Evolution and Explainable Analysis of Grassland Vulnerability in the Hohhot-Baotou-Ordos-Yulin Urban Agglomeration

Thoughts on Smart Nautical Charts

Intelligent Change Detection Method and Application Based on Wuhan-1 Satellite Imagery

Related Author

No data

Related Institution

No data

AI问答

⁰