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大型雷达伺服系统由于传动机构的弹性变形而产生机械谐振,按经典理论设计此类系统,机械谐振很难克服。本文提出了一种基于现代控制理论的全状态反馈及观测器理论的新的设计方案,并以某实际的大型雷达伺服系统进行了计算机仿真。结果表明,本文提出的方案是可行的,较好地克服了机械谐振,从而大大提高了系统的快速性和抗风扰能力。同时,这种方案容易实现,所需增添的设备很少。
Large-scale radar servo system due to the elastic deformation of the transmission mechanism to produce mechanical resonance, according to the classical theory of such systems, mechanical resonance is difficult to overcome. In this paper, a new design scheme based on the state feedback and observer theory of modern control theory is proposed. The computer simulation is carried out with an actual large-scale radar servo system. The results show that the scheme proposed in this paper is feasible and overcomes the mechanical resonance well, which greatly improves the system’s quickness and anti-wind-disturbance ability. At the same time, this solution is easy to implement and requires little additional equipment.