Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Optical aperture synthesis imaging with fractional Fourier-domain filtering

Not Accessible

Your library or personal account may give you access

Abstract

The fractional Fourier transform, which is a generalization of the classical Fourier transform, is introduced into an optical aperture synthesis (OAS) system by which imaging of an astronomical object can be achieved. We introduce fractional Fourier optical imaging and fractional Fourier-domain filtering (FFDF), and then present the schematic diagram of an OAS imaging system with FFDF. The modulation transfer function of an OAS system with FFDF is compared with that of an OAS system in the same condition. The result indicates that the OAS system with FFDF has larger practical cutoff frequency when the fill factor is smaller. Furthermore, the quality of imaging and restoration also demonstrates this conclusion.

©2012 Optical Society of America

Full Article  |  PDF Article
More Like This
Synthesis of general linear systems with repeated filtering in consecutive fractional Fourier domains

M. Fatih Erden and Haldun M. Ozaktas
J. Opt. Soc. Am. A 15(6) 1647-1657 (1998)

Propagation of Bessel–Gaussian beams through a double-apertured fractional Fourier transform optical system

Bin Tang, Chun Jiang, and Haibin Zhu
J. Opt. Soc. Am. A 29(8) 1728-1733 (2012)

Optical image encryption with multistage and multichannel fractional Fourier-domain filtering

Shutian Liu, Quanlin Mi, and Banghe Zhu
Opt. Lett. 26(16) 1242-1244 (2001)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (13)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved