文章摘要
引用本文:王朋辉,范胜林,刘建业.GPS/SINS超紧组合导航的性能分析[J].导航与控制,2010,(2):1-6 本文二维码信息
二维码(扫一下试试看!)
GPS/SINS超紧组合导航的性能分析
Performance Analysis of GPS/SINS Ultra-tight Coupled Navigation
  
DOI:
中文关键词:  全球定位系统  捷联惯导  超紧组合  锁相环  多普勒
English Keywords:GPS  SINS  ultra-tight  PLL  doppler
基金项目:
作者单位
王朋辉 南京航空航天大学导航研究中心 
范胜林 南京航空航天大学导航研究中心 
刘建业 南京航空航天大学导航研究中心 
摘要点击次数: 543
全文下载次数: 0
中文摘要:
      GPS接收机在高动态环境下很容易失锁,特别是载体的高动态造成的应力对接收机载波跟踪环影响很大。为了解决高动态环境下的组合导航,分析了GPS接收机载波跟踪环的测量误差和跟踪门限,采用惯导速度辅助GPS接收机跟踪环路的超紧组合结构。超紧组合需要涉及到GPS接收机跟踪环内部编排及高动态环境下的实验数据,难度较大。针对超紧组合仿真专门开发了GPS实时软件接收机、高动态GPS中频信号仿真器和惯导模拟器并构建了一个完整的GPS/SINS超紧组合仿真系统。仿真结果表明,该超紧组合导航系统可以跟踪50g的加速度和10倍音速。
English Summary:
      GPS receiver in high dynamic environment is easy to lose the lock, especially the stresses caused by high dynamic object can influence the receiver tracking loop significantly. In order to resolve the combination navigation under high dynamic environment, the measurement error and tracking threshold of GPS receiver tracking loop and the ultra-tight structure used the velocity derived form INS to aid the GPS tracking loop is analyzed. Because the ultra-tight coupled navigation need change the GPS receiver tracking loop and test under high dynamic environment., a real-time software GPS receiver and high dynamic GPS IF signal simulator and INS simulator have been developed to build the GPS/SINS ultra-tight coupled navigation system. The simulation results show that the navigation system can track 50g of acceleration and 10 times the speed of sound.
查看全文  查看/发表评论  下载PDF阅读器