Large dynamic cophasing error correction based on improved stochastic parallel gradient descent algorithm

The correction of cophasing errors in segmented mirrors is essential for achieving diffraction-limited performance in large-aperture telescopes. In this paper, we propose an improved stochastic parallel gradient descent (SPGD) algorithm, referred to as cophasing SPGD (CSPGD), specifically designed f...

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Vydané v:	Optics and lasers in engineering Ročník 194; s. 109168
Hlavní autori:	Peng, Dong, Dong, Bing, Tian, Guoliang, He, Jinping
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Elsevier Ltd 01.11.2025
Predmet:	Adaptive optics Cophasing error Segmented mirror Stochastic parallel gradient descent Telescope Wavefront sensorless Telescope Adaptive optics Wavefront sensorless Segmented mirror Cophasing error Stochastic parallel gradient descent
ISSN:	0143-8166
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