哈特曼-夏克波前传感器子孔径合并的理论研究
Study on Hartmann-Shack Wavefront Sensor Subaperture Mergence
陈笠 1俞信1
作者信息
- 1. 北京理工大学光电工程系，北京 100081
- 折叠
摘要
在大气湍流条件较好而被探测信标光信号极弱的工作条件下，自适应光学系统在实际的应用中需要采用子孔径合并的部分校正方式。本文针对云南天文台1.2 m高分辨率自适应光学系统中的哈特曼-夏克(Hartmann-Shack)波前传感器结构，从光子起伏噪声和CCD像素读出噪声对子孔径内哈特曼光斑质心探测精度的影响的角度，对子孔径软件合并和硬件合并两种方案进行了理论分析和计算，导出了有实际应用意义的结论。
Abstract
When the atmospheric turbulence is weak and the detected beacon is faint, adaptive optics system need to work at partial correction with subaperture mergence. Based on the Hartmann-Shack wavefront sensor of the 1. 2m high resolution adaptive optics system at Yunnan Observatory, two methods of subaperture mergence are studied in this paper on the Hartamann spot centroid error, and some valuable results have been obtained.
关键词
自适应光学/波前传感器/质心定位/CCD读出噪声/光子噪声。Key words
adaptive optics/wavefront sensor/centroid position/CCD read-out noise/photon noise引用本文复制引用
出版年
2000
NETL
NSTL
维普
万方数据