中国空间科学技术

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基于扩展Kalm an滤波的实时测速定轨算法

段晓君,周海银   

  1. 国防科学技术大学,国防科学技术大学 长沙410073 ,长沙410073
  • 发布日期:2001-12-25

An Algorithm on the Real-Time MVMTTS Base on Extended Kalman Filter

Duan Xiaojun Zhou Haiyin (National University of Defense Technology,Changsha 410073)   

  • Online:2001-12-25
  • Supported by:
    国家自然科学基金资助项目 (批准号 :6 9872 0 3 9)

摘要: 针对实时测速定轨 (即只用测速数据确定运动目标的状态参数 )的实现问题 ,研究了一种扩展 Kalman滤波方法 ,并利用其状态方程和线性化观测方程得到定轨算法。理论推导和仿真结果表明 ,此算法是收敛的 ,且精度较高。

关键词: 轨道测量, 轨道参数, 卡尔曼滤波, 数据处理, 算法

Abstract: As far as the real time data processing of MVMTTS (multi velocity measuring trajectory tracking system) is concerned,the observation equations and state equations of extended Kalman filter are deduced.And the precision of data fusion is provided.Theoretical analysis and simulation show that the method is applicable to data processing in space flight.