| Phase-Space Analysis of Wavefront Coding Imaging Systems |
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| 作者姓名： | 阳庆国 孙建锋 刘立人 |
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| 作者单位： | Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, PO Box 800-211, Shanghai 201800 |
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| 摘 要： | 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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| 关 键 词： | 相空间分析 波阵面 成像系统 Fourier变换 |
| 收稿时间： | 2006-02-23 |
| 修稿时间： | 2006-02-23 |
Phase-Space Analysis of Wavefront Coding Imaging Systems |
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| YANG Qing-Guo,SUN Jian-Feng,LIU Li-Ren.Phase-Space Analysis of Wavefront Coding Imaging Systems[J].Chinese Physics Letters,2006,23(8):2080-2083. |
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| Authors: | YANG Qing-Guo SUN Jian-Feng LIU Li-Ren |
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| Affiliation: | Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, PO Box 800-211, Shanghai 201800 |
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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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