电讯技术2017，Vol.57Issue(6)：666-671,6.DOI:10.3969/j.issn.1001-893x.2017.06.009
利用Kalman滤波修正卫星导航差分RTK定位坐标
Adjusting Differential GNSS RTK Positioning Coordinate via Kalman Filtering
熊杰 1安毅 1康荣雷 1李阳 1杨少帅 1左芝勇1
作者信息
- 1. 中国西南电子技术研究所,成都610036
- 折叠
摘要
Abstract
The positioning accuracy of the differential global navigation satellite system(DGNSS) real time kinematic (RTK) system is extremely influenced by the carrier phase integer ambiguity resolution algorithms.Especially,when the integer ambiguity is failed to be fixed,the positioning deviation is bound to sharply increase.Against this issue,based on the Jerk model,a DGNSS RTK positioning coordinate adjusting algorithm via the Kalman filtering is proposed in this paper.The traditional Jerk model is augmented by adding the velocity information obtained from the GNSS single-point positioning into the observation equations.Based on this augmented state space model,the Kalman filtering is used to real-time adjust the DGNSS RTK positioning coordinate.The hardware-in-the-loop simulation results show that the suggested adjusting algorithm can significantly improve the positioning accuracy of the DGNSS RTK system.关键词
全球卫星导航系统/RTK技术/Jerk模型/Kalman滤波Key words
global navigation satellite system (GNSS)/real time kinematic (RTK) technology/Jerk model/Kalman filtering分类
信息技术与安全科学引用本文复制引用
熊杰,安毅,康荣雷,李阳,杨少帅,左芝勇..利用Kalman滤波修正卫星导航差分RTK定位坐标[J].电讯技术,2017,57(6):666-671,6.
