中国天眼馈源舱接收比的优化控制
Optimal control of acceptance ratio for feed cabin of China's Eye of Heaven
唐煜翔 1王晨扬 1姚薇怡 1方涛1
作者信息
- 1. 上海工程技术大学 数理与统计学院, 上海 201620
- 折叠
摘要
建立了中国天眼——500米口径球面射电望远镜(FAST)馈源舱接收比优化控制的数学模型,得到天眼系统反射面的理想抛物面方程,并基于遗传算法给出天眼系统主索节点的调节方案,为天眼系统工作抛物面的构建提供了一个重要参考.数值仿真表明,在被观测天体方位角为 36.795°,仰角为 78.169°时,馈源舱接收比为 61.43%,高出基准球面的馈源舱接收比约55.97个百分点,优化效果明显.
Abstract
A mathematical model was established to optimize the acceptance ratio of the feed cabin of China's Eye of Heaven,the Five-hundred-meter Aperture Spherical Telescope(FAST),and the ideal parabolic equation of the reflector of FAST system was obtained.The adjustment scheme of the main cable node of the system was given based on the genetic algorithm.The numerical simulation shows that the reception ratio of the feed cabin is 61.43%when the observed celestial body's azimuth is 36.795° and elevation is 78.169°.The acceptance ratio of the feed cabin is about 55.97 percentage points higher than the base sphere.
关键词
天眼/500米口径球面射电望远镜/遗传算法/馈源舱Key words
Sky Eye/Five-hundred-meter Aperture Spherical Telescope(FAST)/genetic algorithm/feedchamber引用本文复制引用
基金项目
上海工程技术大学大学生创新训练项目资助(cx2221004)
出版年
2024
NETL
NSTL
维普
万方数据