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基于软件接收机的BDS/MEMS IMU深组合导航性能分析 被引量:3

Performance Analysis of BDS/MEMS IMU Deep Integration Algorithm Based on Software Receiver
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摘要 针对BDS/MEMS IMU深组合导航全物理实验难度较大的问题,提出一种基于软件接收机的BDS/MEMS深组合导航系统仿真分析方法。给出BDS软件接收机结构,介绍深组合导航系统结构设计及滤波算法,最后基于仿真数据进行验证。结果表明,在高动态条件下,就BDS/MEMS IMU导航系统而言,其深组合的导航精度较紧组合有较大提高,位置误差小于1m,速度误差小于0.01m/s。 In order to solve the problem that the fu tegration navigation is difficult, a simulation ana 1 physical experiment of BDS/MEMS IMU deep in- ysis method based on software receiver for BDS/ MEMS IMU deep integration navigation system is proposed, which are convenient for evaluation and validation of BDS/MEMS IMU deep integrated navigation performance. The structure of BDS software receiver is given, the deep integration navigation structure and filtering algorithm are introduced. Finally based on the simulation date to verify the analysis. Simulation shows that the deep integration system can improve the navigation accuracy greatly compared with tight integration system, with the position error less than 1 m and velocity error less than 0.01 m/s.
作者 张学龙
出处 《大地测量与地球动力学》 CSCD 北大核心 2017年第1期48-52,共5页 Journal of Geodesy and Geodynamics
基金 湖南省科技厅项目(2014GK3167) 湖南省教科院"十二五"教育规划课题(XJK013CXX016)~~
关键词 深组合 软件接收机 跟踪环路 I/Q支路 性能分析 deep integration software receiver tracking loop I/Q channel performance analysis
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