Path tracking for visual navigation based on H2/H∞
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摘要: 为了从理论上研究视觉导航系统的特性,首先在物理上将视觉导航系统划分为传感器(摄像头、激光测距仪)和视觉处理计算机。针对视觉处理计算机,建立视觉位置测量模型。将视觉位置测量模型的不确定性分为参数不确定性和输入干扰2种。然后通过仿真详细分析了视觉位置估计针对不同模型不确定性的敏感程度。最后在引入视觉位置测量模型不确定性的基础上研究H2/H∞混合鲁棒控制在航迹跟踪上的应用,并给出了保证航迹控制系统稳定性和跟踪性能情况下的视觉位置测量模型摄动范围,对计算机视觉算法的研究具有一定的指导意义。Abstract: Visual navigation system was physically divided into sensors (camera and laser rangefinder) and computer vision processing, so as to study the characteristics of visual navigation system theoretically. And then visual measurement model was established, which was based on the above computer vision processing. The uncertainties of visual position measurement model were divided into parameter uncertainties and input interference. The sensitivity degrees triggered by different kinds of model uncertainties in visual position estimation were analyzed in detail by simulation. Finally, based on the introduction of visual measurement model uncertainty, visual measurement model perturbation ranges, under the constraint conditions of both track control system stability and tracking performance, were given in the study of the H2/H∞ hybrid robust control application to trajectory tracking, which is of certain guiding significance to computer vision algorithm.
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[1] STEPANYAN V.Vision based guidance and flight control in problems of aerial tracking[D].Blacksburg:Virginia Polytechnic Institute and State University,2006:1-78. [2] ZAMES G.Feedback and optimal sensitivity:Model reference transformations,multiplicative seminorms,and approximate inverses[J].IEEE Transactions on Automatic Control,1981,26(2):301-320. [3] BERNSTEIN D S,HADDAD W M.LQG control with an H∞ performance bound:A Riccati equation approach[J].IEEE Transactions on Automatic Control,1989,34(3):293-305. [4] SCHERER C W.Multiobjective H2/H∞ control[J].IEEE Transactions on Automatic Control,1995,40(6):1054-1062. [5] HWANG C L,CHANG L J.Trajectory tracking and obstacle avoidance of car-like mobile robots in an intelligent space using mixed H2/H∞ decentralized control[J].IEEE/ASME Transactions on Mechatronics,2007,12(3):345-352. [6] NAG A,PATEL S S,KISHORE K,et al.A robust H-infinity based depth control of an autonomous underwater vehicle[C]//International Conference on Advanced Electronic Systems.Piscataway,NJ:IEEE Press,2013:68-73. [7] WANG R,ZHOU Z,SHEN Y.Flying-wing UAV landing control and simulation based on mixed H2/H∞[C]//IEEE International Conference on Mechatronics and Automation.Piscataway,NJ:IEEE press,2007:1523-1528. [8] LI Z,DING J.Ground moving target tracking control system design for UAV surveillance[C]//2007 IEEE International Conference on Automation and Logistics.Piscataway,NJ:IEEE Press,2007:1458-1463. [9] SONKA M,HLAVAC V,BOYLE R.Image processing,analysis,and machine vision[M].London:Thomson West,2008:775-786. [10] 王德进.H2和H∞优化控制理论[M].哈尔滨:哈尔滨工业大学出版社,2001:2-3. WANG D J.H2 & H∞ optimal control theory[M].Harbin:Harbin Industrial University Press,2001:2-3(in Chinese). [11] 吴森堂,费玉华.飞行控制系统[M].北京:北京航空航天大学出版社,2005:64-67. WU S T,FEI Y H.Flight control system[M].Beijing:Beihang University Press,2005:64-67(in Chinese). [12] Measurement and Control Group.Robust control[Z].[S.l.]:Eindhoven University of Technology,2002. [13] HORIE K,CONWAY B A.Optimization for fighter aircraft vertical-plane maneuvering using poststall flight[J].Journal of Aircraft,2000,37(6):1017-1021. [14] KHADEMI I,MALEKI B,MOOD A N.Optimal three dimensional Terrain following/Terrain avoidance for aircraft using direct transcription method[C]//201119th Mediterranean Conference on Control & Automation.Piscataway,NJ:IEEE Press,2011:254-258. [15] GU D W,PETKOV P,KONSTANTINOV M.Robust control design with MATLAB[M].Berlin:Springer,2005:20-22. [16] SCHERER C W.An efficient solution to multi-objective control problems with LMI objectives[J].Systems & Control Letters,2000,40(1):43-57. [17] HINDI H A,HASSIBI B,BOYD S P.Multi-objective H2/H∞ optimal control via finite dimensional Q-parameterization and linear matrix inequalities[C]//Proceedings of the 1998 American Control Conference.Piscataway,NJ:IEEE Press,1998:3244-3249.
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