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Far-field Diffraction Properties of Annular Walsh Filters
Author(s) -
Pubali Mukherjee,
Lakshminarayan Hazra
Publication year - 2013
Publication title -
advances in optical technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.124
H-Index - 25
eISSN - 1687-6407
pISSN - 1687-6393
DOI - 10.1155/2013/360450
Subject(s) - amplitude , optics , radius , annulus (botany) , physics , aperture (computer memory) , phase (matter) , pupil function , filter (signal processing) , diffraction , optical transfer function , field (mathematics) , transfer function , mathematics , acoustics , materials science , quantum mechanics , computer science , computer security , electrical engineering , composite material , computer vision , engineering , pure mathematics
Annular Walsh filters are derived from the rotationally symmetric annular Walsh functions which form a complete set of orthogonal functions that take on values either

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