Print Email Facebook Twitter Radial basis functions for aberration retrieval in adaptive optics Title Radial basis functions for aberration retrieval in adaptive optics Author Gupta, Abhimanyu (TU Delft Mechanical, Maritime and Materials Engineering; TU Delft Delft Center for Systems and Control) Contributor Verhaegen, Michel (mentor) van den Boom, Ton (graduation committee) Grammatico, Sergio (graduation committee) Piscaer, Pieter (graduation committee) Wilding, Dean (graduation committee) Degree granting institution Delft University of Technology Date 2017-11-29 Abstract The use of radial basis function (RBF) expansion as a means to represent the generalized pupil function for aberration retrieval from intensity point-spread function has been investigated in this research article. The optimal choice of RBF hyper-parameters is derived empirically to achieve an increased accuracy of approximation along with well-conditioned basis. The phase retrieval problem is solved using PhaseLift, an algorithm based on matrix rank minimization and also using a variant of the alternating projections algorithm proposed by Gerchberg-Saxton. The performance of the RBF-based method is compared in terms of accuracy and execution time with that based on the extended Nijboer-Zernike approach. Numerical results based on simulations are presented. Subject phase retrievaladaptive opticsradial basis functions To reference this document use: http://resolver.tudelft.nl/uuid:2a1d76e6-21b8-4363-9bb3-f738dcb53f7e Embargo date 2019-12-31 Part of collection Student theses Document type master thesis Rights © 2017 Abhimanyu Gupta Files PDF msc_thesis_4513827.pdf 2.18 MB Close viewer /islandora/object/uuid:2a1d76e6-21b8-4363-9bb3-f738dcb53f7e/datastream/OBJ/view