基于短基线的BDS/GLONASS联合RTK定位研究  

Research of Single-epoch and Multi-frequency BDS/GPS RTK Positioning for Short Baseline

作　　者：祝海峰[1,2] 乔书波 张树宏[2] 

机构地区：[1]解放军信息工程大学导航与空天目标工程学院 [2]61243部队

出　　处：《全球定位系统》2016年第3期6-10,共5页Gnss World of China

摘　　要：随着俄罗斯GLONASS系统恢复全网运行以及我国北斗卫星导航系统(BDS)已开始面向用户提供三频导航信号,导航卫星的不断增多,有利于模糊度固定成功率的提高,有效改善GNSS联合RTK定位的精度和可靠性。本文针对GLONASS频分多址的信号体制,在TCAR算法的基础上,将BDS/GLONASS组合引入到宽巷和窄巷模糊度解算中,提出一种基于双系统组合的单历元多频RTK定位算法,并通过实验进行了论证分析,结果表明,该模型可有效改善模糊度解算效果。With the number of visible satellites in the age of multiple systems for global navigation satellite system（GNSS）increasing and Chinese BeiDou satellite navigation system（BDS）beginning to offer triple frequencies signals to users,ambiguity resolution was beneficially effected,and it greatly improved the accuracy and reliability of GNSS-RTK positioning.In this paper,based on the geometric TCAR（Three Carrier Ambiguity Resolution）algorithm,BDS/GLONASS mode was brought into the calculation of wide lane and narrow lane,then the single epoch and multi-frequency BDS/GLONASS RTK positioning model was present.The mathematical model and its feasibility were verified by experimental data and the results showed that compared with other models,the proposed model were optimal in ambiguity resolution efficiency and positioning accuracy.

关 键 词：GLONASS 北斗卫星导航系统 多频RTK TCAR 模糊度解算 

分 类 号：P228.4[天文地球—大地测量学与测量工程]