机构

• 长春光学精密机械与物... [7]

采集方式

• OAI收割 [7]

内容类型

• 会议论文 [7]

发表日期

• 2013 [1]
• 2011 [2]
• 2010 [1]
• 2002 [2]
• 2001 [1]

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浏览/检索结果: 共7条，第1-7条 帮助 限定条件 内容类型：会议论文    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     条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择提交时间升序提交时间降序题名升序题名降序作者升序作者降序发表日期升序发表日期降序 Mechanism Design of Continuous infrared Lens 会议论文  OAI收割 Conference Location, 2013 Su Y. Q.; Zhang J. X.; Lv T. Y.; Yang F.; Wang F. G. 收藏  |  浏览/下载：17/0  |  提交时间：2014/05/22 Stabilization and tracking precision improved based on disturbance observer (EI CONFERENCE) 会议论文  OAI收割 2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011, July 15, 2011 - July 17, 2011, Inner Mongolia, China Sun G.; Zhu M.; Jia H. 收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25 Based on the kinematics of semi-strapdown seeker  the framework coordinate of the semi-strapdown seeker is established and the optical axis stabilization equation of semistrapdown seeker is deduced based on product of exponential (POE) formula. The stabilization control principle block diagram of semi-strapdown seeker is shown based on the stabilization equation. The main influence factors of the stability precision are pointed out  such as friction disturbance  velocity measurement noise and missile disturbance. For the sake of improving the stabilization precision and tracking precision  disturbance observer was proposed in the inner loop of semi-strapdown seeker servo-control system. The low frequency external disturbance and high frequency velocity measurement noise are effectively restrained by the disturbance observer as shown in hardware-in-loop simulation  and optical axis stabilization precision and tracking precision are greatly improved. 2011 IEEE.   Optical axis stabilization of semi-strapdown seeker based on disturbance observer (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Information and Automation, ICIA 2011, June 6, 2011 - June 8, 2011, Shenzhen, China Sun G.; Zhu M.; Yin S.; Jia H. 收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25 Based on the kinematics of semi-strapdown seeker  the framework coordinate of the seeker is established. The optical axis stability equation of semi-strapdown seeker is deduced by using attitude transformation matrix. Then  the stability control principle block diagram of semi-strapdown seeker is shown based on the stability equation. The main factors that influence the stabilization precision are pointed out  such as friction disturbance  velocity-measuring noise and missile disturbance. In order to improve the stabilization precision  disturbance observer was proposed in semi-strapdown seeker stability control. The low frequency external disturbance and high frequency velocity measurement noise are effectively restrained by the disturbance observer as shown in hardware-in-loop simulation  and optical axis stabilization precision is improved nearly 20 times and 5 times due to two different frequencies with same amplitude. 2011 IEEE.   The analysis for the reason of limit cycle generated by friction in servo system (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:  Li M. 收藏  |  浏览/下载：11/0  |  提交时间：2013/03/25 In this paper  limit cycle which results from friction during low-velocity servo system has been discussed. First  the piecewise linearization method has been applied to change nonlinear stribeck model to linear model. Second  with analysis of equilibrium property  it is proved the existence of limit cycle and its certain region. The analysis reveals that it is because of stability of equilibrium repeatedly changing results in the limit cycle during low-velocity state. In addition  it also points that the key point to avoid this phenomenon is to keep robust stability of the close-loop system. 2010 IEEE.   Friction compensation with repeat control at low speed for an optoelectronic system (EI CONFERENCE) 会议论文  OAI收割 Optomechatronic Systems III, November 12, 2002 - November 14, 2002, Stuttgart, Germany 作者:  Guo J.;  Guo J.;  Chen J. 收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25 Concerning the disturbances at low speed  such as friction at zero crossings and the moment fluctuation of the motor  we explore the repeat control method rooted in study law to compensate the low-speed-disturbances  and the system's properties at low speed are improved greatly. Here we present our works. Section 1 is the introduction. The friction and moment fluctuation of the motor at low speed for the optoelectronic system are tested out which are shown in section 2. We introduce a repeat controller to the system to compensate the low-speed disturbances in section 3. Concerning the stability  a filter is added to the repeat controller. The experimental results are discussed in section 4. Not only the repeat control can overcome some low-speed-disturbances  but is more useful when tracking a periodic input signal.   Friction compensation with repeat control at low speed for an optoelectronic system 会议论文  OAI收割 2002 作者:  Guo J.;  Guo J.;  Chen J. 收藏  |  浏览/下载：10/0  |  提交时间：2013/03/28 Adaptive low velocity friction compensation 会议论文  OAI收割 2001 作者:  Chen J.;  Guo J.;  Guo J. 收藏  |  浏览/下载：9/0  |  提交时间：2013/03/28