Optimal adjustment of the FAST active reflecting surface based on a working paraboloid adjustment model

Zhangyi  Kong; Tianyuan  Huo; Chenyu  Nan

doi:10.54097/hset.v5i.727

Authors

Zhangyi Kong
Tianyuan Huo
Chenyu Nan

DOI:

https://doi.org/10.54097/hset.v5i.727

Keywords:

Reflective Surface Optimization, Celestial Objects, Mesh Traversal Method, Coordinate Transformation, Feature Points.

Abstract

FAST is the world's largest single-aperture radio telescope developed independently by China, which adopts innovatively the active reflecting surface technology to realize real-time adjustment of the reflecting surface and dynamic tracking of celestial objects. In this paper, the ideal paraboloid for observing celestial objects is investigated in conjunction with the adjustment factors of the reflecting panel, and the adjustment of the working paraboloid is optimally designed. To address problem one, this paper first cognizes the ideal paraboloid, establishes four criteria that the ideal paraboloid should satisfy, and simplifies the problem in two dimensions based on symmetry. For problem two, this paper firstly establishes a mathematical model for solving the equations of the ideal paraboloid in the general case based on the results of problem one, using the coordinate transformation method.

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