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Proceedings Paper

Realization of TV guidance gyro stabilized platform and research of control algorithm
Author(s): Pu Yang; Qi Li
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Paper Abstract

According to the special performance requirements of optoelectronic tracking equipments, a high-precision three-axis TV guidance gyro stabilized platform was designed and realized. The main techniques, including system construction, mechanical resonance and software and hardware implementation, were discussed and analyzed in details. Two hard cores of the system, the TV tracker and the servo controller, were investigated concretely. For the TV tracker, an improved correlation tracking algorithm was proposed and a fast search method based on image multiple resolutions was adopted, by which total computation time of the image processing system was decreased and the capability of target identification was enhanced. For the servo controller, a multiple closed-loops control structure was founded. To the problem of system nonlinear disturbances, some main disturbance-producing causes in the system were explored and a grey sliding mode control algorithm was proposed. With the control algorithm, the anti-disturbance capability of the system was increased effectively and the dynamic performance of the control system was ameliorated. The operating results of the platform show that the whole design of the system is appropriate and the control algorithms adopted are feasible and computationally efficient.

Paper Details

Date Published: 10 November 2007
PDF: 7 pages
Proc. SPIE 6795, Second International Conference on Space Information Technology, 679543 (10 November 2007); doi: 10.1117/12.774546
Show Author Affiliations
Pu Yang, Southeast Univ. (China)
Qi Li, Southeast Univ. (China)

Published in SPIE Proceedings Vol. 6795:
Second International Conference on Space Information Technology
Cheng Wang; Shan Zhong; Jiaolong Wei, Editor(s)

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