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Autonomous Orbit Determination Based on Corrected IGRF Model
Pages: 23-26
Year: Issue:  5
Journal: AEROSPACE CONTROL

Keyword:  自主导航磁强计扩展卡尔曼滤波模型误差;
Abstract: 地磁场模型存在的误差是磁测定轨精度较低的主要原因之一,为提高自主定轨的精度,本文采用扩展卡尔曼滤波作为处理磁测自主导航问题的滤波算法,以磁强计及星敏感器输出信号为测量信息,对卫星的位置及速度信息进行了估计,并对地磁场模型中几个重要的高斯系数进行了估计与修正.最后给出了数学仿真算例.
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