摘要
对系统间偏差的成分和影响因素进行分析,发现各项改正后残余误差对系统间偏差估值的影响可归结为与卫星编号和广播星历更新相关。提出一种新的顾及参与解算卫星构成的系统间偏差估计方案,新方案能够在仅有4颗多模GNSS卫星可见时提供可靠的位置服务。
In this paper,with the derivation of code observation equation,the structure and influence factors of inter system bias are analyzed.We discover that all factors for low precision navigation can be treated as related to satellite number.A new inter system bias parameter estimation solution is proposed.Finally,the new solution is applied to multi-GNSS positioning,providing reliable positioning information for real-time low precision users when only 4multi-GNSS satellites are visible.
出处
《大地测量与地球动力学》
CSCD
北大核心
2016年第9期813-816,共4页
Journal of Geodesy and Geodynamics
基金
国家重点研发计划(2016YFB0800405)~~
