全球定位系统2024，Vol.49Issue(3)：65-72,93,9.DOI:10.12265/j.gnss.2024045
GNSS基准站信噪比联合卫星系统综合定权的手机RTK定位
Smartphone RTK positioning based on integrated weighting of GNSS base station signal-to-noise ratio and joint satellite system
王尔申 1王珩 2张益泽 3程泉润 3唐文杰 3雷虹4
作者信息
- 1. 沈阳航空航天大学,沈阳 110136
- 2. 沈阳航空航天大学,沈阳 110136||中国科学院上海天文台,上海 200030
- 3. 中国科学院上海天文台,上海 200030
- 4. 沈阳飞机设计研究所电磁环境效应航空科技重点实验室,沈阳 110035
- 折叠
摘要
Abstract
With the continuous improvement of smartphone chip and antenna performance,high-precision positioning based on mobile phones has gradually attracted widespread attention from academia and industry.Compared with single-point positioning,real-time kinematic(RTK)positioning usually shows higher positioning performance.However,there are still relatively few studies on the stochastic model of mobile phone RTK positioning.Therefore,this study takes Xiaomi 8 as an example to focus on the stochastic model of smartphones in a multi-system RTK positioning scenario.The research results show that different systems There are significant differences in satellite pseudorange noise,while the difference in phase noise is smaller.Based on this,this paper proposes a stochastic model of base station signal-to-noise ratio combined with comprehensive weighting between satellite systems,which is more efficient than the traditional signal-to-noise ratio model.The weight distribution between different systems was accurately considered.Static and kinematic experiments were conducted under open and occluded conditions.The results show that compared with the traditional signal-to-noise ratio model,the new model is RTK positioning accuracy in the three-dimensional direction under static openness,static occlusion,kinematic openness and kinematic occlusion has increased by 18.7％,18.3％,3.3％and 4.6％respectively.关键词
智能手机/随机模型/信噪比/RTK定位/定位精度Key words
smartphones/stochastic model/signal-to-noise ratio/RTK positioning/positioning accuracy分类
天文与地球科学引用本文复制引用
王尔申,王珩,张益泽,程泉润,唐文杰,雷虹..GNSS基准站信噪比联合卫星系统综合定权的手机RTK定位[J].全球定位系统,2024,49(3):65-72,93,9.
