Ground-Target Geo-Location Method Based on Extended Kalman Filtering for Small-Scale Airborne Electro-Optical Platform

doi:10.3788/AOS201939.0528001

CIOMP OpenIR

	Ground-Target Geo-Location Method Based on Extended Kalman Filtering for Small-Scale Airborne Electro-Optical Platform
	S.Mu; C.Qiao
	2019
发表期刊	Guangxue Xuebao/Acta Optica Sinica
ISSN	02532239
卷号	39 期号:5
摘要	To improve the target location accuracy of a small-scale airborne electro-optical platform, a target geo-location algorithm based on extended Kalman filtering (EKF) is proposed. According to the characteristics of a tracking target locked by the airborne electro-optical platform, the same target is measured repeatedly. Using the aircraft position and attitude information measured by an integrated navigation system as well as the position information of the gimbal angles from the position encoder, the direction of the line of sight for the target is determined according to the Earth ellipsoid model. The state and measurement equations are established, and the geographical position of the target is estimated using EKF. The Monte Carlo method is used to analyze the influence of the measurement error on the target geo-location accuracy. The simulation results demonstrate that the proposed algorithm is highly accurate and robust. The validity of the algorithm is verified by a flight test. At a flight height of 4300 m, the geo-location error of the target is less than 15 m. Compared with that of the algorithm based on the Earth ellipsoid model, the target geo-location accuracy of the proposed algorithm is improved obviously. 2019, Chinese Lasers Press. All right reserved.
关键词	Extended Kalman filters,Air navigation,Equations of state,Error analysis,Errors,Location,Monte Carlo methods,Navigation systems,Remote sensing
DOI	10.3788/AOS201939.0528001
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收录类别	EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63128
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	S.Mu,C.Qiao. Ground-Target Geo-Location Method Based on Extended Kalman Filtering for Small-Scale Airborne Electro-Optical Platform[J]. Guangxue Xuebao/Acta Optica Sinica,2019,39(5).
APA	S.Mu,&C.Qiao.(2019).Ground-Target Geo-Location Method Based on Extended Kalman Filtering for Small-Scale Airborne Electro-Optical Platform.Guangxue Xuebao/Acta Optica Sinica,39(5).
MLA	S.Mu,et al."Ground-Target Geo-Location Method Based on Extended Kalman Filtering for Small-Scale Airborne Electro-Optical Platform".Guangxue Xuebao/Acta Optica Sinica 39.5(2019).

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