Convolution and filtering in fractional fourier domains
Date
1994Source Title
Optical Review
Print ISSN
1340-6000
Electronic ISSN
1349-9432
Publisher
Springer-Verlag
Volume
1
Issue
1
Pages
15 - 16
Language
English
Type
ArticleItem Usage Stats
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Abstract
Fractional Fourier transforms, which are related to chirp and wavelet transforms, lead to the notion of fractional Fourier domains. The concept of filtering of signals in fractional domains is developed, revealing that under certain conditions one can improve upon the special cases of these operations in the conventional space and frequency domains. Because of the ease of performing the fractional Fourier transform optically, these operations are relevant for optical information processing.
Keywords
Fourier opticsFractional fourier transforms
Optical information processing
Spatial filtering