光学精密工程2011，Vol.19Issue(9)：2085-2091,7.DOI:10.3788/OPE.20111909.2085
基于压电偏转系统的卫星平台振动补偿
Vibration compensation of satellite platform based on piezo-electric steering system
摘要
Abstract
A disturbance compensation scheme based on a piezo-electric steering control system was presented, for the vibration of a satellite platform seriously impacted the tracking and pointing accuracy in space optical communication. A mathematical model for the piezo-electric steering system was built. Then, an adaptive controller based on an improved Least Mean Square(LMS) filter was designed, and effect factors on optimal step length choices were analyzed. For the problem of signal phase delay, an adaptive delay filter was designed not only to compensate the phase delay, but also a-daptively to adjust the input signal phase to increase its convergence rate without adding the step length. Finally, a verifying experiment was performed. The results show that the remained errors after compensation are μrad magnitude and the compensation factor is over 85 %. These results prove that this control scheme is valid and feasible.关键词
空间光通信/卫星平台/振动补偿/压电偏转/LMS滤波Key words
steering/ LMS filtering分类
信息技术与安全科学引用本文复制引用
韩诚山,李祥之,文明,赵庆磊,姜肖楠..基于压电偏转系统的卫星平台振动补偿[J].光学精密工程,2011,19(9):2085-2091,7.基金项目
长江学者和创新团队发展计划资助项目(No.IRT0520) （No.IRT0520）
