摘要
针对P30智能手机采用GPS/BDS/GLONASS/Galileo等多系统定位时的随机模型进行研究,重点对使用多系统手机观测值定位时的伪距噪声进行评估,并分析不同随机模型对手机伪距单点定位精度的影响。结果表明,华为P30智能手机不同系统卫星伪距噪声差异较大,GPS、BDS、GLONASS、Galileo的伪距噪声中误差分别为5.30 m、2.75 m、7.92 m和1.07 m。采用信噪比+系统间加权的随机模型时手机终端的定位性能最优,相比于传统高度角模型,该随机模型在E、N、U方向上的伪距单点定位精度分别提升了36.12%、25.79%、31.30%。
This paper studies the random model of Huawei P30 smartphone positioning with GPS/BDS/GLONASS/Galileo and other multi-system.It focuses on the evaluation of pseudorange noise when using multi-system mobile phone observations and analyzes the influence of different random models on the pseudorange single point positioning accuracy of mobile phone.The results show that the satellite pseudorange noise of different systems of Huawei P30 smartphone varies greatly.The mean square error of pseudorange noise of GPS,BDS,GLONASS and Galileo are 5.30 m,2.75 m,7.92 m and 1.07 m,respectively.When using the random model of signal-to-noise ratio+inter system weighting,the positioning performance of mobile terminal is the best.Compared with the traditional altitude angle model,the pseudorange single point positioning accuracy in E,N and U directions is improved by 36.12%,25.79%and 31.30%.
作者
舒宝
义琛
王利
许豪
田云青
SHU Bao;YI Chen;WANG Li;XU Hao;TIAN Yunqing(School of Geological Engineering and Geomatics,Chang’an University,126 Yanta Road,Xi’an 710054,China;State Key Laboratory of Geo-Information Engineering,1 Mid-Yanta Road,Xi’an 710054,China;Key Laboratory of Western China’s Mineral Resources and Geological Engineering,Ministry of Education,126 Yanta Road,Xi’an 710054,China)
出处
《大地测量与地球动力学》
CSCD
北大核心
2022年第12期1222-1226,共5页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金(41877289,42004024,42127802,41731066)
国家重点研发计划(2021YFC3000503,2018YFC1504805)
中国博士后科学基金(2020M673321)
陕西省自然科学基础研究计划(2021JQ-230)
中央高校基本科研业务费专项(CHD300102261305)。
关键词
智能手机
随机模型
伪距精度
定位精度
smartphone
stochastic model
pseudorange accuracy
positioning accuracy
