| 基于视线角四元数序列的视线角速率样条滤波 |
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| 引用本文： | 张兵,陈磊. 基于视线角四元数序列的视线角速率样条滤波[J]. 宇航学报, 2006, 27(3): 369-372,406 |
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| 作者姓名： | 张兵 陈磊 |
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| 作者单位： | 国防科学技术大学航天与材料工程学院,长沙,410073 |
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| 摘 要： | 依据坐标系转换四元数与坐标系旋转角速度之间的关系，提出了基于视线角四元数序列的视线角速率自适应样条滤波算法。该算法利用样条函数表示视线角四元数，结合四元数与角度之间的对应关系，建立了系统状态方程；在只给出视线角序列信息的情况下，对观测误差进行了补偿，实现了自适应样条滤波算法，获得了有效的视线角速率信息。
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| 关 键 词： | 自适应 样条滤波 视线角 视线角速率 四元数 |
| 文章编号： | 1000-1328（2006）03-0369-04 |
| 收稿时间： | 2005-03-31 |
| 修稿时间： | 2005-03-312005-09-05 |
Spline Filter Approach for Line-of-Sight Rate by Line-of-Sight Angle Quaternion Sequence |
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| ZHANG Bing,CHEN Lei. Spline Filter Approach for Line-of-Sight Rate by Line-of-Sight Angle Quaternion Sequence[J]. Journal of Astronautics, 2006, 27(3): 369-372,406 |
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| Authors: | ZHANG Bing CHEN Lei |
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| Affiliation: | College of Aerospace and Material Engineering, National Univ. of Defense Technology, Changsha 410073, China |
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| Abstract: | According to the equation of quaternion and Line-of-Sight (LOS) rate,this paper presents a self-adaptive spline filtering approach for LOS rate by LOS angle quaternion sequence.Associated with corresponding principle between the quaternion and angle,the spline function is introduced to denote LOS angle quaternion and system state equation so that iterative algorithm of self-adaptive spline filter is established.The observation covariance is evaluated as well.When information of LOS angle sequence is merely provided,this approach can give LOS rate with relatively high precision. |
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| Keywords: | Self-adaptive Spline filter Line-of-Sight angle Line-of-Sight rate Quaternion |
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