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PSF analysis on subaperture aberrations of optical synthetic aperture imaging system

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Based on the wave theory of aberrations, the Point Spread Functions (PSFs) of optical synthetic aperture imaging system disturbed by some aberrations, such as Piston error, Tilt error, spherical aberration, astigmatism, were analyzed. Additionally, the analytical expressions of the central value of the PSF (CVPSF) on Piston error and Tilt error were deduced, and were simulated by MATLAB. The results show that when one sub-aperture of an N identical sub-apertures synthetic array is disturbed by Piston error, the PSF fluctuates periodically. Furthermore, the PSF decreased by Piston error, spherical aberration or astigmatism can be significantly compensated by defocus. And CVPSF is improved from 0.60 to 0.93 for the spherical aberration after it is compensated by defocus.

Original languageEnglish
Title of host publication2011 International Conference on Optical Instruments and Technology
Subtitle of host publicationOptical Systems and Modern Optoelectronic Instruments
DOIs
StatePublished - 2011
Event2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments - Beijing, China
Duration: 6 Nov 20119 Nov 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8197
ISSN (Print)0277-786X

Conference

Conference2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Country/TerritoryChina
CityBeijing
Period6/11/119/11/11

Keywords

  • PSF
  • aberration
  • syntheticaperture

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