A Comparative Study Of Control Design Strategies For Large Radio Telescope

The study of control design strategies for large radio telescope has become a hot topic at present. High frequency large aperture antennas are needed. The requirements of point become more and more accuracy. And the robustness should be good as well.This paper is aiming at the design of controller. Firstly, compare some advantages and disadvantages of different methods. Then made some summarizes of it.Secondly, aiming at the uncertain problem of high frequency large aperture antenna, robustness is compared in this paper. And make the conclusion that the accuracy and the robustness are inconsistent with each other.Finally, sliding mode feedback control is proposed in this paper. It is used to improve controlling accuracy and robustness. Then, the analysis of robust stability is given. The simulation and real experiment results show the effectiveness of this method.