| 扩展卡尔曼滤波在地磁导航中的应用分析 |
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| 引用本文： | 孙中豪,牛艳艳,王永收.扩展卡尔曼滤波在地磁导航中的应用分析[J].北京测绘,2011(1):10-13,87. |
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| 作者姓名： | 孙中豪 牛艳艳 王永收 |
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| 作者单位： | 883部队;郑州交通技师学院; |
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| 摘 要： | 研究基于地磁场的自主导航,建立以卫星轨道动力学方程为基础的系统状态方程,并详细推导以地磁场大小和地磁场矢量为观测量时的观测方程,通过引入EKF解决系统的非线性问题.最后,用matlab对地磁导航系统进行仿真,仿真结果表明EKF有很好的收敛性和稳定性,以地磁场矢量为观测量的导航精度要远高于以地磁场大小为观测量的导航精度,...
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| 关 键 词： | 地磁导航 扩展卡尔曼滤波(EKF) 地磁场模型 稳定性 收敛性 |
The Application Analysis of EKF in Geomagnetic Autonomous Navigation |
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| SUN Zhong-hao,NIU Yan-yan,WANG Yong-shou.The Application Analysis of EKF in Geomagnetic Autonomous Navigation[J].Beijing Surveying and Mapping,2011(1):10-13,87. |
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| Authors: | SUN Zhong-hao NIU Yan-yan WANG Yong-shou |
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| Institution: | SUN Zhong-hao1 NIU Yan-yan2 WANG Yong-shou1(1.63883 Troops,Luoyang,Henan Province,471000,2.Zhengzhou Institute of Traffic Technician,450016) |
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| Abstract: | Autonomous navigation using geomagnetic field is studied in the paper.The system state equations based on the dynamic equation of satellite,orbit were built,and the observation equations with geomagnetic field vector as the observable were derived in detail,the UKF method for nonlinear system was introduced to solve the nonlinear problem of the system.At the end simulations were made on the geomagnetic autonomous navigation system by using Matlab,The results show that the EKF has good performance in stabili... |
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| Keywords: | geomagnetic navigation Extended Kalman Filter(EKF) geomagnetic field model stability convergence |
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