Title :
Wave-front correction with a multilevel stochastic parallel gradient descent technique
Author :
Wang, Sanhong ; Yu, Qifeng ; Liang, Yonghui
Author_Institution :
Coll. of Opto-Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
An adaptive optics (AO) system composed of multiple control levels based on the stochastic parallel gradient descent (SPGD) technique is discussed. Results of numerical simulations demonstrate that the convergence rate of 3-level SPGD wave-front correction increased by 23% compared with that of the usual SPGD wave-front correction.
Keywords :
adaptive optics; stochastic processes; adaptive optics system; effective correction bandwidth; multilevel stochastic parallel gradient descent technique; multiple control levels; wave-front correction; Adaptive optics; Control systems; Convergence; Educational institutions; Measurement; Optical control; Proportional control; Stochastic processes; Stochastic systems; Voltage control; Adaptive optics; effective correction bandwidth; multilevel wave-front correction; stochastic parallel gradient descent algorithm;
Conference_Titel :
Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics, 2009. CLEO/PACIFIC RIM '09. Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-3829-7
Electronic_ISBN :
978-1-4244-3830-3
DOI :
10.1109/CLEOPR.2009.5292139
