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Author Tian, Jing ♦ Yang, Wenshu ♦ Peng, Zhenming ♦ Tang, Tao ♦ Li, Zhijun
Source World Health Organization (WHO)-Global Index Medicus
Content type Text
Publisher Multidisciplinary Digital Publishing Institute
File Format HTM / HTML
Language English
Difficulty Level Medium
Subject Domain (in DDC) Technology ♦ Medicine & health
Abstract In a charge-coupled device (CCD)-based fast steering mirror (FSM) tracking control system, high control bandwidth is the most effective way to enhance the closed-loop performance. However, the control system usually suffers a great deal from mechanical resonances and time delays induced by the low sampling rate of CCDs. To meet the requirements of high precision and load restriction, fiber-optic gyroscopes (FOGs) are usually used in traditional FSM tracking control systems. In recent years, the MEMS accelerometer and gyroscope are becoming smaller and lighter and their performance have improved gradually, so that they can be used in a fast steering mirror (FSM) to realize the stabilization of the line-of-sight (LOS) of the control system. Therefore, a tentative approach to implement a CCD-based FSM tracking control system, which uses MEMS accelerometers and gyroscopes as feedback components and contains an acceleration loop, a velocity loop and a position loop, is proposed. The disturbance suppression of the proposed method is the product of the error attenuation of the acceleration loop, the velocity loop and the position loop. Extensive experimental results show that the MEMS accelerometers and gyroscopes can act the similar role as the FOG with lower cost for stabilizing the LOS of the FSM tracking control system.
Description Country affiliation: China
Author Affiliation: Tian J ( Institute of Optics and Electronics, Chinese Academy of Science, Chengdu 610209, China.; Yang W ( School of Opto-Electronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China.; Peng Z ( Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu 610209, China.; Tang T ( University of Chinese Academy of Sciences, Beijing 100039, China.; Li Z ( Institute of Optics and Electronics, Chinese Academy of Science, Chengdu 610209, China.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Reading ♦ Research ♦ Self Learning
Interactivity Type Expositive
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2016-03-25
Publisher Place Switzerland
e-ISSN 14248220
Journal Sensors
Volume Number 16
Issue Number 4

Source: WHO-Global Index Medicus