大型球面射电望远镜控制系统研究

ON CONTROL SYSTEM OF LARGE RADIO TELESCOPE

针对大射电望远镜机电光一体化设计新方案 (大跨度悬索结构 )的特点 ,提出了将连续的高次曲线跟踪问题转化为对一组离散点跟踪问题的控制策略与方法 .考虑到轨迹跟踪重复性的特点 ,将具有学习功能的自校正控制方法应用之 .

Considering the special characteristics (long-cable structure) of the new design project with the integration of mechanical, electronic and optic technologies for the next generation large radio telescope, a corresponding control strategy and methodology are described. The strategy is that the problem of tracing a high nonlinear 3D curve is transformed into a problem of tracing a group of discrete points. Since the trajectory is repeatable for the same radio source, the self-regulate control method with a learning function is utilized. The numerical result has shown the feasibility and efficiency of the method.