Spatial Vector-based Shape Adjustment Strategy for "FAST" Active Reflecting Surface

Abstract

In this paper, we study the shape adjustment strategy of the active reflecting surface of ''FAST'', which requires the determination of the ideal paraboloid and the adjustment of the active reflecting surface under the constraint of the reflecting panel adjustment so that the feed module can receive as many reflected signals as possible. This paper establishes the ideal paraboloid model, the coordinate change equation model and the reflective panel adjustment model. The algorithm mainly adopts the idea of variable step size. Finally, this paper analyzes and calculates the signal reception rate of the working paraboloid and the reference reflecting sphere according to the three different states of the reflecting panel.