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	Compensating for some errors related to time delay in a charge-coupled-device-based fast steering mirror control system using a feedforward loop 期刊论文 OAI收割 OPTICAL ENGINEERING, 2010, 卷号: 49, 期号: 7 作者: Tang, Tao; Ma, Jiaguang; Ren, Ge; Fu, Chenyu 收藏 \| 浏览/下载：26/0 \| 提交时间：2015/09/21 feedforward control time delay two closed loops charge-coupled-device-based instability
	Position servo control of a DC electromotor using a hybrid method based on model reference adaptive control (MRAC) (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China 作者: Chen J. 收藏 \| 浏览/下载：23/0 \| 提交时间：2013/03/25 This paper dealed with position control problems of a DC motor servo system that had nonlinear friction and was subject to parametric uncertainties external disturbances etc. In order to overcame those unfavourable factors mentioned above a model reference adaptive control method was proposed to regulate the important and main speed loop in the positioning system which was designed with three closed control loop where a compensatory measure was given so as to counterbalance the friction torque disturbances. In addition the other two close loops were built in adjusting the position and the current of the servo system respectively that aimed to achieve the fast and precise positioning and increase dynamic stiffness against load disturbances. Experimental results illustrate satisfactory performances in steady state error load capability high rapidity and so on. 2010 IEEE.
	Position following control system for the dome based on TMS320F2812 (EI CONFERENCE) 会议论文 OAI收割 ICMIT 2005: Control Systems and Robotics, September 20, 2005 - September 23, 2005, Chongging, China 作者: Zhao J. 收藏 \| 浏览/下载：16/0 \| 提交时间：2013/03/25 A position following control system was discussed to synchronize the rotational position of the dome with that of the theodolite. There were two loops in the servo control system. Open loop control was for speed adjustment while closed loop control was for position following control. The core controller of the servo control system adopted TMS320F2812 DSP (Digital Signal Processing) chip and an absolute type encoder was used as a position feedback unit. A converter DA8562 converted the digital angular position calculated in DSP to an analogy voltage to control the dome rotation through a series of devices such as frequency conversion actiyator servomotor and gear case. The experimental results show that the system synchronous following error less than 2 at 0.1/s to 35/s.