基于自适应估计的光电平台目标跟踪方法

张静; 王宏伦; 盖文东

基于自适应估计的光电平台目标跟踪方法

北京航空航天大学无人驾驶飞行器设计研究所, 北京 100191

基金项目: 国防重点预研基金资助项目

详细信息

中图分类号: TP 274
计量
- 文章访问数: 2785
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- 被引次数: 0
出版历程
- 收稿日期: 2009-10-21
- 网络出版日期: 2010-12-30

Ground target tracking method research based on adaptive estimation for electro-optical platform

Research Institute of Unmanned Aerial Vehicle, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 在基于图像的目标跟踪系统中,跟踪器延迟对系统的稳定性和跟踪精度产生不利影响.通过对光电平台伺服系统的理想控制指令的分析,给出了一种基于自适应估计的跟踪器延迟补偿方法.该方法采用自适应估计器快速估计目标速度,预测目标位置,同时结合无人机位置和姿态信息预测控制指令实现延迟补偿.仿真结果表明:该方法在目标机动和载机机动情况下能够有效提高光电平台的跟踪精度.
- 图像目标跟踪 /
- 延迟补偿 /
- 自适应估计 /
- 跟踪精度 /
- 光电平台
Abstract: A harmful effect on stability and tracking accuracy of the system was produced by the time-delay of tracker in an image-based target tracking system. Analyzing the ideal control command of the electro-optical platform servo system, a delay compensation method based on adaptive estimation was proposed. This method used target position and unmanned aerial vehicle position and attitude to predict the control signals of the electro-optical platform. The target velocity was estimated by an adaptive estimation rapidly. The results of simulation show that the tracking accuracy of the electro-optic platform as the target maneuvers and the unmanned aerial vehicle maneuvers can be improved effectively.
- image-based target tracking /
- delay compensation /
- adaptive estimation /
- tracking accuracy /
- electro-optical platform

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参考文献(1)

[1] 马佳光.捕获跟踪瞄准系统的基本技术问题[J].光电工程,1989,16(3):1-41 Ma Jiaguang.The basic technologies of the acquisition,tracking and pointing systems[J].Opto-Electronic Engineering,1989,16(3):1-41(in Chinese) [2] 王连明,葛文奇,李杰.跟踪系统中跟踪器延迟的自适应预测补偿方法[J].光电工程,2002,29(4):13-16 Wang Lianming,Ge Wenqi,Li Jie.Adaptive prediction and compensation method for delay of tracker in tracking system[J].Opto-Electronic Engineering,2002,29(4):13-16(in Chinese) [3] 孙丽娜,宋悦铭,戴明.采用复合控制提高机载光电平台的数引跟踪精度[J].光学精密工程,2008,16(2):265-269 Sun Lina,Song Yueming,Dai Ming.Improving digital leading tracking precision for photoelectric platform by complex control [J].Optics and Precision Engineering,2008,16(2):265-269(in Chinese) [4] Sankary K E,Alamdari H H,Masry E I E.An adaptive ELD compensation techinique using a predictive comparator[J].IEEE Tracnsaction on Circutts and Systems,2009,56(8):619-623 [5] Pomet P J.Adaptive nonlinear regulation:estimation from the lyapunov equation[J].IEEE Transactions on Automatic Control,1992,37(6):729-740 [6] Chen Lingji,Mehra R K.Adaptive control design for nonaffine models arising in flight control[J].Journal of Guidance,Control,and Dynamics,2004,27(2):209-217 [7] Jankovic M,Ghosh B K.Visually guided ranging from observations of points,lines and curves via an identifier based nonlinear observer[J].Systems & Control Letters,1995,25:63-73 [8] Madyastha V K.Adaptive estimation for control of uncertain nonlinear system with application to target tracking .Georiga State:School of Aerospace Engineering Georiga Institue of Technology,2005 [9] Dobrokhodov V N,Kaminerer I I.Rapid motion estimation of a target moving with time-varying velocity .AIAA-07-6746,2007

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