机载GPS载波伪距单点精确观测定位技术仿真算法分析
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摘要
为了测试载波伪距单点定位的定位精度,本文建立了GPS载波伪距单点定位的无电离层组合观测方程,设计开发了GPS载波伪距单点定位程序,读取广播星历文件和观测值文件,完成卫星位置计算,最后输出观测文件中GPS卫星的坐标文件、观测文件中连续观测到的卫星坐标文件以及坐标值及改正坐标文件,逐个实现各个函数模块的功能,为实际精确定位工程提供理论基础。
In order to test single point positioning and briefly introduces several kinds of carrier phase of a linear combination of the single point positioning observation. This paper built the procession of pseudo range single point positioning of GPS carrier and ionosphere combination observation equation. And designed and developed with single point positioning program,this program reads the broadcast ephemeris files and observations,complete satellite position calculation,satellite selection,parameter estimation,the final output file GPS satellite coordinates file,file continuous observations of satellite coordinates file and coordinate values and correction coordinates,design thought based on the modular programming,the function of the realization of each function module one by one. It provide a theoretical basis for accurate positioning for the actual project.
In order to test single point positioning and briefly introduces several kinds of carrier phase of a linear combination of the single point positioning observation. This paper built the procession of pseudo range single point positioning of GPS carrier and ionosphere combination observation equation. And designed and developed with single point positioning program,this program reads the broadcast ephemeris files and observations,complete satellite position calculation,satellite selection,parameter estimation,the final output file GPS satellite coordinates file,file continuous observations of satellite coordinates file and coordinate values and correction coordinates,design thought based on the modular programming,the function of the realization of each function module one by one. It provide a theoretical basis for accurate positioning for the actual project.
引文
[1]王迪,陈光武,杨厅.一种快速高精度GPS组合定位方法研究[J].铁道学报,2017,39(2):67-73.
[2]张铭彬,王潜心,厉姣姣.基于i GMAS产品的BDS/GPS组合RTK定位性能分析[J].合肥工业大学学报:自然科学版,2017,40(3):327-331.
[3]宋福成,陈宜金,杨汀,等.矿山近井点测量精密单点定位技术研究[J].煤炭科学技术,2017,45(1):200-204.
[4]唐卫明,徐坤,金蕾,等.北斗/GPS组合伪距单点定位性能测试和分析[J].武汉大学学报:信息科学版,2015,40(4):529-533.
[5] Zhang X,He X,Liu W.Characteristics of systematic errors in the BDS Hatch–Melbourne–Wübbena combination and its influence on wide-lane ambiguity resolution[J].Gps Solutions,2017,21(1):265-277.
[6] Macalalad E P,Tsai L C,Wu J.Performance evaluation of different ionospheric models in single-frequency codebased differential GPS positioning[J]. GPS Solutions,2016,20(2):173-185.
[7]潘宗鹏,柴洪洲,刘军,等.基于部分整周模糊度固定的非差GPS精密单点定位方法[J].测绘学报,2015,44(11):1 210-1 218.
[8]何晓云,冯冀宁,杨晓波.基于LFM模型的高动态弱GPS信号载波捕获[J].电讯技术,2015,55(8):895-900.
[9]赵琳,张胜宗,李亮,等.基于自适应EKF的BDS/GPS精密单点定位方法[J].系统工程与电子技术,2016,38(9):2 142-2 148.
[10]唐卫明,张先春,惠孟堂,等.基于卡尔曼滤波的北斗伪距单点定位算法研究[J].测绘通报,2016(10):6-8.
[2]张铭彬,王潜心,厉姣姣.基于i GMAS产品的BDS/GPS组合RTK定位性能分析[J].合肥工业大学学报:自然科学版,2017,40(3):327-331.
[3]宋福成,陈宜金,杨汀,等.矿山近井点测量精密单点定位技术研究[J].煤炭科学技术,2017,45(1):200-204.
[4]唐卫明,徐坤,金蕾,等.北斗/GPS组合伪距单点定位性能测试和分析[J].武汉大学学报:信息科学版,2015,40(4):529-533.
[5] Zhang X,He X,Liu W.Characteristics of systematic errors in the BDS Hatch–Melbourne–Wübbena combination and its influence on wide-lane ambiguity resolution[J].Gps Solutions,2017,21(1):265-277.
[6] Macalalad E P,Tsai L C,Wu J.Performance evaluation of different ionospheric models in single-frequency codebased differential GPS positioning[J]. GPS Solutions,2016,20(2):173-185.
[7]潘宗鹏,柴洪洲,刘军,等.基于部分整周模糊度固定的非差GPS精密单点定位方法[J].测绘学报,2015,44(11):1 210-1 218.
[8]何晓云,冯冀宁,杨晓波.基于LFM模型的高动态弱GPS信号载波捕获[J].电讯技术,2015,55(8):895-900.
[9]赵琳,张胜宗,李亮,等.基于自适应EKF的BDS/GPS精密单点定位方法[J].系统工程与电子技术,2016,38(9):2 142-2 148.
[10]唐卫明,张先春,惠孟堂,等.基于卡尔曼滤波的北斗伪距单点定位算法研究[J].测绘通报,2016(10):6-8.