Fractional Fourier transforms and their optical implementation II

Autor:	Ozaktas, H. M., Mendlovic, D.
Přispěvatelé:	Haldun M. Özaktaş
Rok vydání:	1993
Předmět:	Mathematical models Spatial filtering Computer Vision and Pattern Recognition Optical data processing Optical filters Fractional Fourier transforms Atomic and Molecular Physics and Optics Correlation Fourier transforms Electronic Optical and Magnetic Materials
Zdroj:	Journal of the Optical Society of America A: Optics and Image Science, and Vision Journal of Optical Soc Am. A Optics
ISSN:	1520-8532 1084-7529
DOI:	10.1364/josaa.10.002522
Popis:	The linear transform kernel for fractional Fourier transforms is derived. The spatial resolution and the space-bandwidth product for propagation in graded-index media are discussed in direct relation to fractional Fourier transforms, and numerical examples are presented. It is shown how fractional Fourier transforms can be made the basis of generalized spatial filtering systems: Several filters are interleaved between several fractional transform stages, thereby increasing the number of degrees of freedom available in filter synthesis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3813ebcab645f02b813b16e04806425e https://doi.org/10.1364/josaa.10.002522 Zobrazit plný text záznamu