[1] [1] DOWNEY G A. Electro-optical tracking considerations II［J］. SPIE Acquisition,Tracking and Pointing Xvii,2003,5082:139-153.

[2] [2] ZHANG ZH Y，FAN D P，FAN SH X. Servo system design for E-O stabilization and tracking devices［J］. Opt. Precision Eng., 2006, 14(4):681-688. (in Chinese)

[3] [3] LI Y, ANG K, CHONG G C Y. Patents, software and hardware for PID control – An overview and analysis of the current art［J］. IEEE Control Systems Magazine, 2006,26(1):42-54.

[4] [4] LI SH Y. Fuzzy Control · Neurocontrol and Intelligent Cybernetics ［M］. Harbin: Harbin Institute of Technology Press, 1996. (in Chinese)

[5] [5] ASTROM K J, WITTENMARK B. Adaptive Control［M］. Beijing: Science Press, 2003.

[6] [6] SHAHNAZI R, SHANECHI H M, PARIZ N. Position control of induction and DC servomotors: a novel adaptive fuzzy pi sliding mode control［J］. IEEE Transactions on Energy Conversion, 2008, 23(1):138-147.

[7] [7] LI H W. Servo system of large telescope based on internal model PID control method［J］. Opt. Precision Eng., 2009,17(2):327-332. (in Chinese)

[8] [8] ASTROM K J, HAGGLUND T. Advanced PID Control［M］.ISA,2005.

[9] [9] CHEN L，MA B Y, ZHANG X F. Application of intelligent PID controller in CaC2 furnace electrode adjustment system［J］. Journal of System Simulation, 2007,19(7):1544-1547. (in Chinese)

[10] [10] WANG D X, DU F J. Ultra-low speed research on friction drive for astronomical telescope［J］. Opt. Precision Eng., 2006,14(2):274-278. (in Chinese)

[11] [11] MANCINI D, CASCONE E, SCHIPANI P. Telescope control system stability study using a variable structure controller［J］.SPIE,1998,3351:331-341.

[12] [12] MANCINI D, BRESCIA M, CASCONE E, et al.. A variable structure control law for telescope pointing and tracking［J］.SPIE,1997,3086:72-84.

[13] [13] GUO H，YU Y Q. DDV servocontrol system based on variable-structure PID control［J］. Transactions of China Electrotechnical Society, 2007,22(11):58-62. (in Chinese)

[14] [14] XIONG A，FAN Y K，WU Q ZH. Design of embedded virtual dynamical signal analyzer［J］. Opt. Precision Eng., 2009,17(5):1026-1032. (in Chinese)