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...

Full description

Bibliographic Details

Published in:	Optics and lasers in engineering Vol. 194; p. 109168
Main Authors:	Peng, Dong, Dong, Bing, Tian, Guoliang, He, Jinping
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 01.11.2025
Subjects:	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
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!