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Proceedings Paper

PSF analysis on subaperture aberrations of optical synthetic aperture imaging system
Author(s): Zhile Wang; Shuqing Zhang; Yanchao Jiang; Ling Hao; Lanqing Zhang
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Paper 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.

Paper Details

Date Published: 5 December 2011
PDF: 9 pages
Proc. SPIE 8197, 2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 81970W (5 December 2011); doi: 10.1117/12.904731
Show Author Affiliations
Zhile Wang, Harbin Institute of Technology (China)
Shuqing Zhang, Harbin Institute of Technology (China)
Yanchao Jiang, Harbin Institute of Technology (China)
Ling Hao, Harbin Institute of Technology (China)
Lanqing Zhang, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 8197:
2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments

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