[1] [1] Masten Michael K,Sebesta Henry R.Line-of-sight Stabilization/Tracking Systems:An Overview[C]// Proceedings of the American Control Conference.Colorado,IEEE,1987:1477-1482

[3] [3] Canudas W C,Olsson H,Astrom K J,et al.A New Model for Control of Systems with Friction[J].IEEE Transactions on Automatic Control,1995,40(3):354-362

[4] [4] Altpeter F,Myszkorowski P,Longchamp R.Identification for Control of Drives with Friction[C]//IFAC Conf.on Control of Industrial Systems.Belfort,France:IFAC,1997,1:673-677

[5] [5] Wang Y,Xiong Z H,Ding H,et al.Nonlinear friction compensation and disturbance observer for a high-speed motion platform[C]// Proceedings of the 2004 IEEE International Conference on Robotics and Automation.New Orleans,USA:IEEE,2004:4515-4520

[6] [6] Luenberger D G.An Introduction to Observers[J].IEEE Trans Autom Control,1971,AC-16(6):596-602

[7] [7] Kwon SangJoo,Chung Wan Kyun.A Discrete-Time Design and Analysis of Perturbation Observer for Motion Control Applications[J].IEEE Transactions on Control Systems Technology,2003,11(3):399-407