安卓智能手机的精密单点定位模型研究Research on precise point positioning model based on Android smartphone
刘永胜,高成发,陈波,孙璞玉,王斌
摘要(Abstract)：
针对当前智能手机的全球卫星导航系统(GNSS)原始数据质量不佳导致常规精密单点定位(PPP)模型无法有效利用以及缺少智能手机PPP模型测试分析资料等问题,该文以载波加钟差的改进精密单点定位模型为基础,扩展至相应的载波加钟速模型、UofC模型、无模糊度模型、载波二次差模型及星间差分模型,简述了各个模型的特点,并利用华为P10智能手机的GNSS原始数据,测试并分析了各个模型定位精度情况:星间差分PPP模型在短期内(10 min)定位精度最优,平面中误差在1.8 m左右,高程2.1 m左右;改进模型与载波加钟速模型定位精度相当,UofC模型精度稍差;无模糊度模型与载波二次差模型需在Kalman滤波过程中采用降权方式防止其发散,定位精度取决于前期历元的数据质量。
关键词(KeyWords)： 精密单点定位;智能手机;安卓;全球导航卫星系统
基金项目(Foundation):
作者(Author): 刘永胜,高成发,陈波,孙璞玉,王斌
DOI: 10.16251/j.cnki.1009-2307.2021.02.003
参考文献(References)：
- [1]毕京学，甄杰，郭英．Android手机GPS和A-GPS定位精度分析[J]．测绘通报，2016(7):10-13.(BI Jingxue,ZHEN Jie,GUO Ying.Accuracy of GPS and A-GPSpositioning on Android phone[J].Bulletin of Surveying and Mapping,2016(7):10-13．）
- [2]董超．基于Android的手机定位服务系统设计[D]．哈尔滨：哈尔滨理工大学，2013.(DONG Chao.Design of mobile positioning service system based on Android[D].Harbin:Harbin University of Science and Technology,2013．）
- [3]Google,Inc.Raw GNSS measurements[EB/OL].[2019-08-30].https：∥developer.android.google.cn/guide/topics/sensors/gnss．
- [4]SIMON B,FRANK V D.Precise positioning using raw GPS measurements from Android smartphones[J].GPS World,2016,27(11):43-48．
- [5]NENAD S,EMANUELA M,IVAN R,et al.Exploitation of Google GNSS measurement API for risk assessment of GNSS applications[C]∥Proceeding of 25th Telecommunications Forum(TELFOR)2017.Belgrade,Serbia:IEEE,2017:293-296．
- [6]European GNSS Agency.White paper on using GNSS raw measurements on Android devices[Z].[S.l.]:[s.n.],2017．
- [7]ZHANG Xiaohong,TAO Xianlu,ZHU Feng,et al.Quality assessment of GNSS observations from an Android N smartphone and positioning performance analysis using time dierenced filtering approach[J].GPS Solutions,2018,22:70．
- [8]张云，马天翊，阙扬州，等．移动终端中的GNSS高精度定位技术评估[C]∥第九届中国卫星导航学术年会．[出版地不详]：[出版者不详]，2018:6.(ZHANG Yun,MA Tianyi,QUE Yangzhou,et al.GNSS highprecision positioning technology evaluation in mobile terminals[C]∥The 9th China Satellite Navigation Academic Annual Conference.[S.l.]:[s.n.],2018:6．）
- [9]LIU Yongsheng,GAO Chengfa,CHEN Bo,et al.Pseudo-range single point and differential positioning accuracy test based on Android smartphone[C]∥China Satellite Navigation Conference.Singapore:Springer,2019:72-81．
- [10]CHEN Bo,GAO Chengfa,LIU Yongsheng,et al.Realtime precise point positioning with a Xiaomi MI 8Android smartphone[J].Sensors,2019,19(12):2835．
- [11]赵兴旺，王胜利，刘超．GNSS精密单点定位理论与方法[M]．合肥：中国科学技术大学出版社，2015.(ZHAO Xingwang,WANG Shengli,LIU Chao.GNSSprecision single point positioning theory and method[M].Hefei:Press of USCT,2015．）
- [12]陈春花，高成发，袁本银．基于星间差分新模型的GPS精密单点定位方法[C]∥测绘通报测绘科学前沿技术论坛．[出版地不详]：[出版者不详]，2008:10.(CHENChunhua,GAO Chengfa,YUAN Benyin.GPS precise single point positioning method based on new model of satellite-differenced[C]∥Surveying and Mapping Circular Science and Technology Frontier Technology Forum.[S.l.]:[s.n.],2008:10．）
- [13]杨效果，赵静，党亚民，等．相对论效应计算方法的精度研究[J]．测绘科学，2012,37(3):29-30,62.(YANGXiaoguo,ZHAO Jing,DANG Yamin,et al.Effect of relativity in GNSS with different methods[J].Science of Surveying and Mapping,2012,37(3):29-30,62．）
- [14]龚一民．单频GPS精密单点定位关键问题研究[D]．郑州：信息工程大学，2017.(GONG Yimin.Research on key problems of single frequency GPS precise point positioning[D].Zhengzhou:Information Engineering University,2017．）
- [15]IGS data center of Wuhan university[DB/OL].[2019-08-30].ftp：∥igs.gnsswhu.cn.