九子镜多镜望远镜系统仿真方法的研究

Study on Simulating Multiple Mirror Telescope System with Nine Sub-mirrors

在分析光学设计软件模拟光学面型基本原理的基础上,提出借助该软件接口,通过程序设计建立面形文件,仿真九子镜多镜望远镜系统的方法。首先,分析九子镜稀疏孔径结构特征,推导在球面主镜上确定子镜位置的公式。然后,开展程序设计,规定光线经过九子镜稀疏孔径结构光学面的传播属性,建立用户定义面形文件,实现仿真九子镜多镜望远镜系统。最后,给出评价系统的仿真实例。结果表明,仿真方法合理有效,对仿真其他结构的稀疏孔径系统具有重要的参考价值。

On the base of analyzing the fundamental principle of optical surfaces simulation using opti- cal design program, a method is proposed to simulate the multiple mirror telescope system by programming to establish surface files with the aid of the interface of this program. First of all, the sparse aperture structure of nine sub-mirrors is analyzed, and the formulas determining locations of sub-mirrors on the spherical prima- ry mirror are deduced. Then, the properties of rays passing through the optical surface of the sparse aperture structure of nine sub-mirrors are defined by programming. A user defined surface file is created. The simula- tion of multiple mirror telescope systems with nine sub-mirrors is achieved. At last, a simulation example is given out and evaluated. It proves that the simulation method is reasonable and effective, and has significant reference value to simulate the sparse aperture system of other structures.