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Phase-Space Analysis of Wavefront Coding Imaging Systems |
| YANG Qing-Guo;SUN Jian-Feng;LIU Li-Ren |
| Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, PO Box 800-211, Shanghai 201800 |
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| Cite this article: |
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YANG Qing-Guo, SUN Jian-Feng, LIU Li-Ren 2006 Chin. Phys. Lett. 23 2080-2083 |
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Abstract We explore the use of the Radon--Wigner transform, which is associated with the fractional Fourier transform of the pupil function, for determining the point spread function (PSF) of an incoherent defocused optical system. Then we introduce these phase-space tools to analyse the wavefront coding imaging system. It is shown that the shape of the PSF for such a system is highly invariant to the defocus-related aberrations except for a lateral shift. The optical transfer function of this system is also investigated briefly from a new understanding of ambiguity function.
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| Keywords:
42.30.Kq
42.30.Va
42.15.Fr
42.15.Dp
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Published: 01 August 2006
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