Line-of-Sight Rate Estimation Based on UKF for Strapdown Seeker
Joint Authors
Sun, Tingting
Chu, Hairong
Zhang, Baiqiang
Jia, Hongguang
Zhang, Yue
Zhang, Mingyue
Guo, Lihong
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-08-05
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Sun, Tingting& Chu, Hairong& Zhang, Baiqiang& Jia, Hongguang& Guo, Lihong& Zhang, Yue…[et al.]. 2015. Line-of-Sight Rate Estimation Based on UKF for Strapdown Seeker. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1073160
Modern Language Association (MLA)
Sun, Tingting…[et al.]. Line-of-Sight Rate Estimation Based on UKF for Strapdown Seeker. Mathematical Problems in Engineering No. 2015 (2015), pp.1-14.
https://search.emarefa.net/detail/BIM-1073160
American Medical Association (AMA)
Sun, Tingting& Chu, Hairong& Zhang, Baiqiang& Jia, Hongguang& Guo, Lihong& Zhang, Yue…[et al.]. Line-of-Sight Rate Estimation Based on UKF for Strapdown Seeker. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1073160
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1073160