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| 基于强跟踪扩展Kalman滤波的X射线脉冲星导航定轨精度研究 | |
| 引用本文： | 杜健,费保俊,刘颖,潘高田,要俊杰,孙维瑾.基于强跟踪扩展Kalman滤波的X射线脉冲星导航定轨精度研究[J].装甲兵工程学院学报,2011,25(2):93-96. |
| 作者姓名： | 杜健 费保俊 刘颖 潘高田 要俊杰 孙维瑾 |
| 作者单位： | 1. 装甲兵工程学院基础部,北京,100072 2. 中国航天空气动力技术研究院,北京,100074 3. 装甲兵工程学院装备指挥与管理系,北京,100072 |
| 摘 要： | 为提高X射线脉冲星导航定轨精度,依据脉冲星导航原理,建立了X射线脉冲星自主导航系统的状态方程和观测方程,提出用强跟踪扩展Kalman滤波（Strong Tracking Extended Kalman Filter,STEKF）替代扩展Kalman滤波,并对3颗脉冲星卫星运行的位置和速度估计进行了仿真实验。仿真结果表明：STEKF具有使滤波器能够自适应地校正估计偏差并迅速跟踪状态变化的能力,有效地提高了卫星运动状态的估计精度和数值稳定性。 |
| 关 键 词： | 扩展Kalman滤波 强跟踪扩展Kalman滤波 X射线脉冲星自主导航 渐消因子 滤波性能 |
Research on Accuracy of Orbit Determination in X-ray Pulsar Navigation Based on Strong Tracking Extended Kalman Filter |
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| DU Jian,FEI Bao-jun,LIU Ying,PAN Gao-tian,YAO Jun-jie,SUN Wei-jin.Research on Accuracy of Orbit Determination in X-ray Pulsar Navigation Based on Strong Tracking Extended Kalman Filter[J].Journal of Armored Force Engineering Institute,2011,25(2):93-96. | |
| Authors: | DU Jian FEI Bao-jun LIU Ying PAN Gao-tian YAO Jun-jie SUN Wei-jin |
| Institution: | DU Jian1,FEI Bao-jun1,LIU Ying2,PAN Gao-tian3,YAO Jun-jie1,SUN Wei-jin1(1.Department of Fundamental Courses,Academy of Armored Force Engineering,Beijing 100072,China,2.China Academy of Aerospace Aerodynamics Technology,Beijing 100074,3.Department of Equipment Command and Administration,China) |
| Abstract: | In order to improve the accuracy of orbit determination for the spacecraft,a navigation system state equation and an observational equation are established according to the X-ray pulsar autonomous navigation principle,the Strong Tracking Extended Kalman Filter(STEKF) instead EKF is proposed,and the simulation experiment is carried on the position and speed operation estimate of three pulsars.The simulation results shows that STEKF has the ability of enabling the filter adaptively to correct estimate deviati... |
| Keywords: | Extended Kalman Filter(EKF) Strong Tracking Extended Kalman Filter(STEKF) X-ray Pulsar-based Autonomous Navigation(XNAV) fading factor filtering performance |
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