光学
相位恢复
点扩散函数
物理
主镜像
圆锥截面
望远镜
参数统计
基础(线性代数)
视野
计算机科学
傅里叶变换
数学
统计
几何学
量子力学
作者
John Krist,Christopher J. Burrows
出处
期刊:Applied optics
[The Optical Society]
日期:1995-08-01
卷期号:34 (22): 4951-4951
被引量:97
摘要
Phase-retrieval measurements of point-spread functions from the pre- and post-repair Hubble Space Telescope are presented. The primary goal was to determine the aberrations present in the second wide-field and planetary camera (WFPC2) to align and validate its corrective optics. With both parametric model-fitting techniques and iterative (Gerchberg–Saxton) methods, accurate measurements have been obtained of the WFPC2 and Hubble Space Telescope optics, including improved maps of the zonal errors in the mirrors. Additional phase-retrieval results were obtained for the aberrated, prerepair cameras and the corrected faint-object camera. The information has been used to improve models produced by point-spread-function simulation programs. On the basis of the measurements a conic constant for the primary mirror of κ = −1.0144 has been derived.
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