Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Line-of-Sight Rate Estimation Based on UKF for Strapdown Seeker | |
Sun, T. T.; H. R. Chu; B. Q. Zhang; H. G. Jia; L. H. Guo; Y. Zhang and M. Y. Zhang | |
2015 | |
发表期刊 | Mathematical Problems in Engineering |
页码 | 14 |
摘要 | Aiming at the problem that the strapdown imaging seeker cannot measure line-of-sight (LOS) rate directly, this paper presents an effective algorithm for LOS rate estimation. To address the problem, the reference frames and angles are defined. According to the relative kinematics and attitude relationship between missile and target, the nonlinear state equations and measurement equations of LOS rate are derived, and the estimation algorithm based on unscented Kalman filter (UKF) is proposed. Considering the estimation accuracy mainly depends on body LOS (BLOS) angle accuracy and gyro accuracy, the paper is unprecedented to research how these two factors impact the LOS angle and rate accuracy by simulation. Semiphysical simulation experiment verifies the correctness and accuracy of the algorithm, and the result shows that the estimation algorithm can meet the accuracy and real-time requirements of guidance system simultaneously. Thus LOS rate estimation algorithm based on UKF provides a theoretical basis for engineering applications of strapdown imaging seeker. |
收录类别 | SCI ; EI |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/55410 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Sun, T. T.,H. R. Chu,B. Q. Zhang,et al. Line-of-Sight Rate Estimation Based on UKF for Strapdown Seeker[J]. Mathematical Problems in Engineering,2015:14. |
APA | Sun, T. T.,H. R. Chu,B. Q. Zhang,H. G. Jia,L. H. Guo,&Y. Zhang and M. Y. Zhang.(2015).Line-of-Sight Rate Estimation Based on UKF for Strapdown Seeker.Mathematical Problems in Engineering,14. |
MLA | Sun, T. T.,et al."Line-of-Sight Rate Estimation Based on UKF for Strapdown Seeker".Mathematical Problems in Engineering (2015):14. |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Sun-2015-Line-of-Sig(4085KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 |
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