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2-port internal model control for gyro stabilized platform of electro-optical tracking system
Xia, Yun-Xia1,2; Bao, Qi-Liang1; Li, Zhi-Jun1; Wu, Qiong-Yan1; Xia, Y.-X.
Volume8395
Pages83950M
2012
Language英语
ISSN0277786X
DOI10.1117/12.920402
Indexed ByEi
Subtype会议论文
AbstractLine-of-sight stabilized system, which can be used to isolate the vibration of the moving bed and the disturbance of environment, is the most important part of an electro-optical tracking system. The steady precision and robustness are the key issues of recent researches. In this paper, a novel control approach so called 2-Port Internal Model Control (2-PIMC) for line-of-sight stabilized system is proposed. By adding a parallel feedback control loop on the basis of Internal Model Control (IMC), the 2-PIMC method can improve precision while it also has strong robustness as the IMC. The robustness and the static error of 2-PIMC method were subsequently analyzed. Based on this novel method, Simulation and experiment are both carried out for a gyro stabilized platform of electro-optical tracking system. The experiments include a shaking table which can generate disturbance as the moving bed and a gyro stabilized platform which is mounted on the shaking table. The experimental result indicated that the gyro stabilized platform using 2-PIMC method is accurate and effective. Comparing with PI control, the following error and disturbance restraining error were both greatly improved at low-frequency and mid-frequency by the 2-PIMC method proposed. The improvement of precision is more than 10dB at 4Hz. In addition, the 2-PIMC method doesn't need any extra sensors for the platform and it's easy for parameters regulation. It can be concluded that the2-PIMC method is a new approach for the high-performance gyro stabilized platform and might have broad application prospect. © 2012 SPIE.; Line-of-sight stabilized system, which can be used to isolate the vibration of the moving bed and the disturbance of environment, is the most important part of an electro-optical tracking system. The steady precision and robustness are the key issues of recent researches. In this paper, a novel control approach so called 2-Port Internal Model Control (2-PIMC) for line-of-sight stabilized system is proposed. By adding a parallel feedback control loop on the basis of Internal Model Control (IMC), the 2-PIMC method can improve precision while it also has strong robustness as the IMC. The robustness and the static error of 2-PIMC method were subsequently analyzed. Based on this novel method, Simulation and experiment are both carried out for a gyro stabilized platform of electro-optical tracking system. The experiments include a shaking table which can generate disturbance as the moving bed and a gyro stabilized platform which is mounted on the shaking table. The experimental result indicated that the gyro stabilized platform using 2-PIMC method is accurate and effective. Comparing with PI control, the following error and disturbance restraining error were both greatly improved at low-frequency and mid-frequency by the 2-PIMC method proposed. The improvement of precision is more than 10dB at 4Hz. In addition, the 2-PIMC method doesn't need any extra sensors for the platform and it's easy for parameters regulation. It can be concluded that the2-PIMC method is a new approach for the high-performance gyro stabilized platform and might have broad application prospect. © 2012 SPIE.
Conference NameProceedings of SPIE: Acquisition, Tracking, Pointing, and Laser Systems Technologies XXVI
Conference Date2012
Citation statistics
Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7390
Collection光电工程总体研究室(一室)
Corresponding AuthorXia, Y.-X.
Affiliation1. Institute of Optics and Electronics, Chinese Academy of Science, Chengdu 610209, China
2. Graduate School of Chinese Academy of Science, Beijing 100039, China
Recommended Citation
GB/T 7714
Xia, Yun-Xia,Bao, Qi-Liang,Li, Zhi-Jun,et al. 2-port internal model control for gyro stabilized platform of electro-optical tracking system[C],2012:83950M.
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