南极地区星基精密单点定位服务精度分析及定位评估

doi:10.13474/j.cnki.11-2246.2025.0801

测绘通报 ›› 2025, Vol. 0 ›› Issue (8): 1-6.doi: 10.13474/j.cnki.11-2246.2025.0801

• 极地测绘 • 下一篇

南极地区星基精密单点定位服务精度分析及定位评估

刘洋^1,2, 柴洪洲², 王敏^1,2, 周英东^1,2, 孙爽^1,2, 张乾坤^1,2

1. 智慧地球重点实验室, 北京 100080;
2. 信息工程大学地理空间信息学院, 河南郑州 450001

收稿日期:2024-12-06 出版日期:2025-08-25 发布日期:2025-09-02
作者简介:刘洋(1998—),男,硕士,主要研究方向为GNSS精密单点定位。E-mail:yiang_8023@163.com
基金资助:
国家自然科学基金(42074014;42304043);智慧地球重点实验室基金(KF2023YB01-11)

Precision analysis and positioning evaluation of satellite-based precise point positioning service in the Antarctic region

LIU Yang^1,2, CHAI Hongzhou², WANG Min^1,2, ZHOU Yingdong^1,2, SUN Shuang^1,2, ZHANG Qiankun^1,2

1. Key Laboratory of Smart Earth, Beijing 100080, China;
2. College of Geospatial Information, Information Engineering University, Zhengzhou 450001, China

Received:2024-12-06 Online:2025-08-25 Published:2025-09-02

摘要/Abstract

摘要： 星基精密单点定位服务能在地面网络难以覆盖的环境下提供高精度定位,但在极区的应用研究较少。本文基于中国第40次南极考察的实测HAS数据,结合网络播发的MADOCA和CNES实时精密轨道和钟差产品,评估了不同产品在南极地区的GPS和Galileo的轨道和钟差改正数的可用性、精度及PPP定位性能。研究结果表明,HAS、MADOCA和CNES提供的GPS和Galileo改正数产品精度较高,均能够满足厘米级定位精度的需求,反映出这些实时产品在南极地区的适用性。HAS和MADOCA均能提供稳定可靠的PPP定位服务,HAS水平方向定位精度可达到0.2 m以内,垂直方向定位精度可达到0.4 m以内,符合服务标准。这为星基精密单点定位技术在极地及其他高纬度地区的应用提供了理论和实践依据。

关键词: 南极地区, 星基精密单点定位服务, 改正数精度, 定位性能

Abstract: Satellite-based precise point positioning service offers high-precision positioning in the environment where terrestrial networks are hard to cover,yet there are few applications in polar regions.Based on the measured HAS data of China's 40th Antarctic Expedition and the real-time precision orbit and clock deviation products of MADOCA and CNES broadcast on the network.This paper assesses the availability,accuracy and PPP performance of different products' orbit and clock correction of GPS and Galileo in the Antarctic region.The results demonstrate that GPS and Galileo correction products provided by HAS,MADOCA and CNES are highly accurate and can satisfy the requirement of centimeter-level positioning accuracy,reflecting the applicability of these real-time products in the Antarctic region.Both HAS and MADOCA can provide stable and reliable PPP services,with a horizontal positioning accuracy of less than 0.2 m and a vertical positioning accuracy of less than 0.4 m,conforming to the service standards.This provides a theoretical and practical basis for the application of satellite-based precision single-point positioning technology in polar regions and other high latitudes.

Key words: Antarctic region, satellite-based precise point positioning service, correction accuracy, positioning performance

中图分类号:

P228

刘洋, 柴洪洲, 王敏, 周英东, 孙爽, 张乾坤. 南极地区星基精密单点定位服务精度分析及定位评估[J]. 测绘通报, 2025, 0(8): 1-6.

LIU Yang, CHAI Hongzhou, WANG Min, ZHOU Yingdong, SUN Shuang, ZHANG Qiankun. Precision analysis and positioning evaluation of satellite-based precise point positioning service in the Antarctic region[J]. Bulletin of Surveying and Mapping, 2025, 0(8): 1-6.

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南极地区星基精密单点定位服务精度分析及定位评估

Precision analysis and positioning evaluation of satellite-based precise point positioning service in the Antarctic region

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