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  • 教授
  • 博士生导师
  • 硕士生导师
  • 教师拼音名称:Qin Honglei
  • 电子邮箱:
  • 入职时间:2003-06-01
  • 所在单位:电子信息工程学院
  • 学历:博士研究生
  • 办公地点:新主楼F317房间
  • 性别:
  • 联系方式:010-82316491;qhlmmm0426(微信)
  • 学位:博士
  • 在职信息:在职
  • 主要任职:系主任
  • 毕业院校:哈尔滨工程大学
  • 学科:信息与通信工程
论文
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LEO Satellites/INS Integrated Positioning Framework Considering Orbit Errors Based on FKF
  • 所属单位:北京航空航天大学
  • 发表刊物:IEEE Transactions on Instrumentation and Measurement
  • 关键字:Equivalent emission time error (EETE), federated Kalman filter (KF), inertial navigation system (INS), low Earth orbit (LEO) satellites, opportunistic signals.
  • 摘要:In the global navigation satellite system (GNSS) denial environment, positioning can be achieved by utilizing opportunistic signals from noncooperative low Earth orbit (LEO) satellites. Combining LEO satellites with inertial navigation systems (INSs) can improve the availability of positioning. However,due to limitations in the visibility and orbital configuration of LEO satellites, the fault recovery capability is poor. In addition,the current strategy to obtain orbit parameters of LEO satellites imposes significant tangential position errors. All of these factors collectively restrict the accuracy of positioning. Hence, this article first considers the characteristics of the orbit and proposes a generalized Doppler measurement model based on equivalent emission time error (EETE), effectively reducing the influence of orbit errors and decreasing the state dimension. Then, a LEO satellites/INS integrated positioning framework based on adaptive federated Kalman filter (AFKF) is proposed, which exhibits strong fault tolerance. Besides, a mathematical model between the EETE error and the equivalent observed Doppler (EOD) error is established, providing a theoretical basis for positioning error evaluation. Vehicular experiments using real Iridium and Orbcomm signals demonstrated that the proposed framework significantly improves the positioning accuracy. Hence, this study provides an effective and reliable LEO satellites/INS integrated positioning method.
  • 论文类型:期刊论文
  • 一级学科:信息与通信工程
  • 文献类型:期刊
  • 是否译文:
  • 收录刊物:SCI
  • 附件: 2024-TIM-LEO Satellites INS Integrated Positioning Framework Considering Orbit Errors Based on FKF.pdf