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浏览/检索结果: 共5条，第1-5条 帮助 限定条件 专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 A survey of line of sight control technology for airborne photoelectric payload 期刊论文 Guangxue Jingmi Gongcheng/Optics and Precision Engineering, 2018, 卷号: 26, 期号: 7, 页码: 1642-1652 作者:  Che, Xin;  Jia, Ping;  Tian, Da-Peng 收藏  |  浏览/下载：7/0  |  提交时间：2019/09/17 Delay control systems  Closed loop control systems  Clutter (information theory)  Disturbance rejection  Feedback  Photoelectricity  Position control  Target tracking  Time delay   Methods of improving closed-loop bandwidth for large telescope control systems 期刊论文 Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering, 2018, 卷号: 47, 期号: 12 作者:  Deng, Yongting;  Li, Hongwen;  Wang, Jianli 收藏  |  浏览/下载：2/0  |  提交时间：2019/09/17 Closed loop control systems  Acceleration  Bandwidth  Feedback  Telescopes   Trajectory tacking control of a quad-rotor based on active disturbance rejection control (EI CONFERENCE) 会议论文 2012 IEEE International Conference on Automation and Logistics, ICAL 2012, August 15, 2012 - August 17, 2012, Zhengzhou, China Gong X.; Tian Y.; Bai Y.; Zhao C. 收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25 The objective of this paper is to deal with a trajectory tracking of a Quad-rotor unmanned aerial vehicle (UAV). For the model uncertainty  the external disturbance and the coupling factor are considered  an active disturbance rejection control (ADRC) algorithm is introduced into the designing procedure. The aircraft dynamic model is proposed in this article  based on which the closed-loop control system is divided into four independent channels with the coupling factor compensated by the extended state observer (ESO). The nonlinear state error feedback (NLSEF) algorithm is designed in each channel to improve the closed-loop dynamics. In this article  the ADRC controller is expressed in the discrete form. And finally  the simulation results show that the proposed control algorithm achieves a favourable tracking performance. 2012 IEEE.   The research on servo control technology of O-E theodolite based on angular acceleration sensor (EI CONFERENCE) 会议论文 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Wei L.; Jin G.; Juan C. 收藏  |  浏览/下载：14/0  |  提交时间：2013/03/25 A new servo control methods for O-E theodolite is presented in this paper. The methods integrates optimally feed forward and feedback control  and adopts acceleration delay compensation based on velocity delay compensation  then achieves servo control of O-E theodolite effectively. Furthermore  Angular acceleration sensor is applied as information resources  and adaptive filter is formed to provide with feed forward control signal in the methods. For double closed loop servo control system of O-E theodolite  the location correction loop and velocity correction loop are analyzed and designed. Simulation and experimental results show that comparing with traditional methods  this servo control methods can improve significantly tracking precision and stability of O-E theodolite. 2010 IEEE.   Position following control system for the dome based on TMS320F2812 (EI CONFERENCE) 会议论文 ICMIT 2005: Control Systems and Robotics, September 20, 2005 - September 23, 2005, Chongging, China Mi Y.; Zhao J.; Qiao Y. 收藏  |  浏览/下载：13/0  |  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.