【摘要】 文中简单分析了大型卡塞格伦射电望远镜主动反射面技术的调整系统的几个关键技术。首先介绍了天线表面误差与系统增益及分辨率的关系,以及经典的误差测量方法。然后着重分析微波全息测量法在主动反射面调整控制技术中的应用。最后简介了可基于全息测量和闭环控制的总线式控制系统,为闭环控制的设计奠定基础。更多还原

【Abstract】 The outline of active reflector technique of cassegrain radio telescope is analyzed in this paper.Firstly,the relationship between antenna tolerance and system gain/resolution is reviewed.Then the holography measurement of active reflector deflection and its application in control system are introduced.At last,the control system for the active reflector is discussed,establish the base of design for close-loop control.更多还原