Line-of-sight angular rate estimation of strapdown optical image seeker

	Line-of-sight angular rate estimation of strapdown optical image seeker
	Sun T.; Chu H.; Jia H.; Zhang Y.; Guo L.
	2014
发表期刊	Guangxue Xuebao/Acta Optica Sinica
ISSN	ISBN/02532239
卷号	34 期号:6
摘要	In order to estimate line-of-sight (LOS) angular rate of strapdown seeker accurately, strapdown optical image seeker mathematical model is established. According to the relative motion between missile and target, LOS angular rate estimation algorithm is researched. The required algorithm coordinates are defined, strapdown seeker and gyro models are also established. According to the relative kinematics and attitude relationship of missile and target, the nonlinear state equations of LOS angular rate are given. Aimed at filtering accuracy and real-time application problems, LOS angular rate estimation algorithm based on unscented Kalman filtering (UKF) is proposed. Hardware in loop simulation system are established, and experiments are carried out. The result shows that, the maximum estimation errors of LOS angle and LOS angular rate are 0.37 and 0.68/s, the estimation accuracy are 0.1008 and 0.2116/s, respectively. Algorithm running time is about 3.8 ms in digital signal processor, the estimation algorithm can meet the accuracy and real-time performance requirements of guidance system simultaneously. LOS angular rate estimation algorithm based on UKF provides a theoretical basis for engineering applications of the strapdown optical image seeker.
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/44131
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.,Chu H.,Jia H.,et al. Line-of-sight angular rate estimation of strapdown optical image seeker[J]. Guangxue Xuebao/Acta Optica Sinica,2014,34(6).
APA	Sun T.,Chu H.,Jia H.,Zhang Y.,&Guo L..(2014).Line-of-sight angular rate estimation of strapdown optical image seeker.Guangxue Xuebao/Acta Optica Sinica,34(6).
MLA	Sun T.,et al."Line-of-sight angular rate estimation of strapdown optical image seeker".Guangxue Xuebao/Acta Optica Sinica 34.6(2014).

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