GPS与BDS-3融合非组合动态精密单点定位模糊度固定性能评估

doi:10.13474/j.cnki.11-2246.2025.0701

测绘通报 ›› 2025, Vol. 0 ›› Issue (7): 1-4.doi: 10.13474/j.cnki.11-2246.2025.0701

• 定位技术分析 • 下一篇

GPS与BDS-3融合非组合动态精密单点定位模糊度固定性能评估

翟燕¹, 谢瑞², 杨莉¹

1. 华北水利水电大学测绘与地理信息学院, 河南郑州 450046;
2. 河南工程学院土木工程学院, 河南郑州 451191

收稿日期:2024-12-16 发布日期:2025-08-02
通讯作者: 谢瑞。E-mail:23493086@qq.com
作者简介:翟燕(1981—),女,硕士,讲师,主要研究方向为工程测量、摄影测量与遥感。E-mail:82687695@qq.com
基金资助:
国家自然科学基金(42201097)

Evaluation of ambiguity fixation performance in GPS and BDS-3 integrated non-combined kinematic precise point positioning

ZHAI Yan¹, XIE Rui², YANG Li¹

1. School of Surveying and Mapping and Geographic Information, North China University of Water Resources and Electric Power, Zhengzhou 450046, China;
2. College of Civil Engineering, Henan University of Engineering, Zhengzhou 451191, China

Received:2024-12-16 Published:2025-08-02

摘要/Abstract

摘要： 本文对比分析了GPS、BDS-3及GPS+BDS-3双系统融合非组合动态精密单点定位模糊度固定性能。结果表明,GPS+BDS-3双系统融合增加了可观测卫星数,优化了空间几何结构,有效地减少了首次模糊度固定时间,提高了模糊度固定率,改善了定位精度。GPS平均首次模糊度固定时间与固定率分别为28.7 min和98.6%,收敛后水平、高程和三维方向定位精度分别为0.9、1.7和1.9 cm;BDS-3平均首次模糊度固定时间与固定率分别为47.2 min和96.9%,收敛后水平、高程和三维方向定位精度分别为1.4、2.5和2.7 cm;GPS+BDS-3双系统融合平均首次模糊度固定时间与固定率分别达13.2 min和99.5%,收敛后水平、高程和三维方向定位精度分别为0.8、1.6和1.8 cm。

关键词: GPS+BDS-3融合, 非组合PPP, 模糊度固定, 性能评估

Abstract: This paper compares and analyzes the ambiguity resolution performance of GPS,BDS-3 and the integration of GPS and BDS-3 for non-combined dynamic precise point positioning (PPP). The results indicate that the integration of GPS and BDS-3 increases the number of observable satellites and optimizes the spatial geometric structure, thereby effectively reducing the initial ambiguity fix time, improving the ambiguity fix rate, and enhancing the positioning accuracy. For GPS, the average initial ambiguity fix time and fix rate are 28.7 minutes and 98.6%, respectively, while the positioning accuracies in the horizontal, vertical, and 3D directions after convergence are 0.9, 1.7, and 1.9 cm, respectively. For BDS-3, the average initial ambiguity fix time and fix rate are 47.2 minutes and 96.9%, respectively, while the positioning accuracies in the horizontal, vertical, and 3D directions after convergence are 1.4, 2.5, and 2.7 cm, respectively. When GPS and BDS-3 are integrated, the average initial ambiguity fix time and fix rate reach 13.2 minutes and 99.5%, respectively, and the positioning accuracies in the horizontal, vertical, and 3D directions after convergence are 0.8, 1.6, and 1.8 cm, respectively.

Key words: GPS+BDS-3 integration, non-combined PPP, ambiguity resolution, performance evaluation

中图分类号:

P228

翟燕, 谢瑞, 杨莉. GPS与BDS-3融合非组合动态精密单点定位模糊度固定性能评估[J]. 测绘通报, 2025, 0(7): 1-4.

ZHAI Yan, XIE Rui, YANG Li. Evaluation of ambiguity fixation performance in GPS and BDS-3 integrated non-combined kinematic precise point positioning[J]. Bulletin of Surveying and Mapping, 2025, 0(7): 1-4.

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GPS与BDS-3融合非组合动态精密单点定位模糊度固定性能评估

Evaluation of ambiguity fixation performance in GPS and BDS-3 integrated non-combined kinematic precise point positioning

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