BDS单历元算法及精度分析
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摘要
为了进一步研究BDS卫星在高精度矿区滑坡变形监测领域的应用,在对BDS目前运行系统的观测与星座设计分析的基础上,讨论GNSS单历元实时高精度算法模型的特点以及实现实时定位所需要的条件,进而提出基于单历元算法的适用于短基线变形监测需要的模糊度搜索法。实验结果表明,BDS数据能够满足单历元高精度变形监测的精度要求。同时给出BDS与GPS单历元算法解算精度的比较分析结果,为BDS在高精度定位领域的相关研究提供参考。
In order to further study on the application of BDS in the field of high-precise landslide and deformation monitoring for mining area,based on the analysis of observation and constellation design of the current operating system of BDS,the paper discussed the characteristics of GNSS single-epoch real-time high-precise algorithm models and the conditions for real-time positioning,and proposed an ambiguity searching algorithm suitable for short baseline deformation monitoring based on single epoch algorithm.Experimental result showed that BDS data could provide the required accuracy of high-precise single-epoch deformation monitoring.Moreover,the comparative analysis between the single epoch algorithms of BDS and GPS would provide a reference for the application of BDS in high-precise positioning.
In order to further study on the application of BDS in the field of high-precise landslide and deformation monitoring for mining area,based on the analysis of observation and constellation design of the current operating system of BDS,the paper discussed the characteristics of GNSS single-epoch real-time high-precise algorithm models and the conditions for real-time positioning,and proposed an ambiguity searching algorithm suitable for short baseline deformation monitoring based on single epoch algorithm.Experimental result showed that BDS data could provide the required accuracy of high-precise single-epoch deformation monitoring.Moreover,the comparative analysis between the single epoch algorithms of BDS and GPS would provide a reference for the application of BDS in high-precise positioning.
引文
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[2]许其凤.认识北斗建设北斗[J].中国工程科学,2014,16(8):26-32.
[3]林超,邹劲,黄俊铭.基于北斗的高精度测量接收机在位移监测中的应用研究[J].测绘通报,2015(2):64-66,69.
[4]刘会杰,张乃通.全球导航卫星系统的星座可见性研究[J].系统工程与电子技术,2000(5):23-25.
[5]XU G C.GPS theory,algorithm and applications[M].Berlin:Springer-Verlag,2007.
[6]李征航,刘万科,楼益栋,等.基于双频GPS数据的单历元定向算法研究[J].武汉大学学报(信息科学版),2007,23(9):753-756.
[7]郭际明,周命端,谢翔,等.利用DUFCOM和DC算法的GPS单历元双差整周模糊度快速确定算法[J].武汉大学学报(信息科学版),2013,38(7):813-817.
[8]刘宁,熊永良,王德军,等.一种新的GPS整周模糊度单历元求解算法[J].武汉大学学报(信息科学版),2013,38(3):291-294.
[9]唐波,朱俊岭,崔平远,等.基于LAMBDA方法的GPS整周模糊度解算研究[J].计算机仿真,2006(6):120-123.
[10]刘根友,朱耀仲,韩保民.GPS单历元定位的阻尼LAMBDA算法[J].武汉大学学报(信息科学版),2004,29(3):195-197.