宽带
窄带
物理
探测器
还原(数学)
光学
望远镜
间断(语言学)
活塞(光学)
移相器
航程(航空)
算法
计算机科学
波前
工程类
航空航天工程
数学
数学分析
几何学
作者
G. A. Chanan,Andry Maykol Pinto
摘要
Phase Discontinuity Sensing (PDS) is one of two successful approaches to segment phasing currently in use at the Keck telescopes, but it has only very limited capture range. In this work, we describe and present numerical simulations of a broadband version of the current (narrowband) PDS algorithm which can extend the capture range from 0.4 μm to 40 μm. Like the original algorithm, the new broadband PDS algorithm (BPDS) does not require any special-purpose hardware, only a high-resolution area detector operating in the 2 - 3 μm range. The potential application of this algorithm to Extremely Large Telescopes is also discussed.
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