全球定位系统2025，Vol.50Issue(6)：72-80,9.DOI:10.12265/j.gnss.2025102
山区公路CORS网型结构对网络RTK定位性能影响研究
The impact of CORS network structure on network RTK positioning performance in mountainous highway areas
摘要
Abstract
Quantitative evaluation of the service capacity of individual units within a continuously operating reference station(CORS)network is essential for the selection and optimization of reference station locations.Considering the characteristics of strip-shaped mountain road areas,such as significant elevation differences and complex path layouts,this article proposes a network structure factor model that incorporates elevation differences between reference stations to analyze the impact of network structure on positioning performance.Using the expansion project of the G5 Beijing-Kunming Expressway in Sichuan Province as a case study,a provincial CORS network,a mountainous highway CORS network,and a fused CORS network were constructed.Their structure factors,initialization time,positioning accuracy,and stability were compared to analyze the impact of different network configurations on real time kinematic(RTK)positioning performance.Experimental show that both the engineering CORS network and the integrated CORS network outperform the provincial CORS network in terms of structure factor,initialization time,positioning accuracy,and stability.Among them,the integrated CORS network demonstrates the highest accuracy and consistency.The findings indicate that a well-planned CORS station layout can significantly enhance the performance of RTK positioning services in CORS networks.关键词
CORS/山区公路/网型结构因子/网络实时动态差分(RTK)/定位性能Key words
CORS/mountainous roads/network structure factor/network RTK/positioning perform-ance分类
天文与地球科学引用本文复制引用
李应祥,雷传金,蓝青,张熙,成兵,李飙,戴懿蘅,李云傲..山区公路CORS网型结构对网络RTK定位性能影响研究[J].全球定位系统,2025,50(6):72-80,9.基金项目
国家自然科学基金(41874008) （41874008）
四川省交通运输科技项目(2023-A-14) （2023-A-14）
四川省地理时空大数据中心建设关键技术研究任务计划(2024KJ01) （2024KJ01）
