空间合成孔径成像光学系统的光瞳对称性

王忠生; 张学军

doi:10.3788/OPE.20111909.1999

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空间合成孔径成像光学系统的光瞳对称性

现代应用光学 | 更新时间：2020-08-12

- 空间合成孔径成像光学系统的光瞳对称性
- Symmetry of pupil in spatial synthetic aperture imaging optical system
- 光学精密工程 2011年19卷第9期页码：1999-2005
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所,吉林长春,中国,130033
  2. 中国科学院研究生院北京,100039
- 作者简介：
- 基金信息：
  
  国家自然科学基金重点资助项目(No.61036015)()
- DOI：10.3788/OPE.20111909.1999
  中图分类号： TH743;P111.21
- 收稿日期：2010-10-27，
  
  修回日期：2011-01-29，
  
  网络出版日期：2011-09-26，
  
  纸质出版日期：2011-09-26
- 稿件说明：
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王忠生, 张学军. 空间合成孔径成像光学系统的光瞳对称性[J]. 光学精密工程, 2011,19(9): 1999-2005

WANG ZHong-sheng, ZHANG Xue-jun. Symmetry of pupil in spatial synthetic aperture imaging optical system[J]. Editorial Office of Optics and Precision Engineering, 2011,19(9): 1999-2005
王忠生, 张学军. 空间合成孔径成像光学系统的光瞳对称性[J]. 光学精密工程, 2011,19(9): 1999-2005 DOI： 10.3788/OPE.20111909.1999.

WANG ZHong-sheng, ZHANG Xue-jun. Symmetry of pupil in spatial synthetic aperture imaging optical system[J]. Editorial Office of Optics and Precision Engineering, 2011,19(9): 1999-2005 DOI： 10.3788/OPE.20111909.1999.

摘要

从对称性的角度分析比较了几种常见光学系统结构对非相干成像的影响。首先

采用了二维点扩散函数和二维空间调制传递函数分析评价复杂光瞳光学系统

通过理论分析得出复杂光瞳分布的对称性影响着点扩散函数和调制传递函数的对称性的结论。最后

利用二维评价手段

针对几种常见的合成孔径光学系统结构

Golay3、Golay4、JWST和Giant Magellan Telescope

的光瞳分布

通过光学设计软件Zemax和Matlab综合给出它们实际的二维点扩散函数和二维调制传递函数

并结合MTF的空间分布特性对光瞳分布的对称性进行了对比。对比结果表明

近期的JWST和GMT合成孔径光学系统分别具有30个和9个MTF对称轴

明显多于早期的Golay3系统的3个MTF对称轴

其MTF的分布也更加合理。因此

对于复杂光瞳非相干成像光学系统而言

好的光瞳分布对称性具有更好的空间成像特性。

Abstract

On the basis of symmetry of optical systems

the effects of several kinds of complex pupil constructions on an incoherent synthetic aperture imaging optical system were analyzed and compared. Firstly

the two-dimensional Point Spread Function(PSF) and two-dimensional Modulation Transfer Function(MTF) were used to analyze the complex pupil optical system

and it is concluded that the symmetry of complex pupil distribution has effects on the symmetries of PSF and MTF. Then

for practical pupil distribution

the two-dimensional PSFs and MTFs of the common synthetic aperture optical systems as follows

Golay3

Golay4

JWST and GMT

were given by optical design software Zemax and Matlab

and the symmetry of the systems was compared by combining the spatial distribution of MTF. Obtained results indicate that JWST and GMT synthetic aperture systems developed recently show 30 and 9 MTF symmetric axes

respectively

which is obvious higher than 3 MTF symmetric axis of a common Golay3 construction. Moreover

their MTF distribution is more reasonable. These results demonstrate that the good symmetry of pupil distribution has a better imaging for the incoherent imaging optical system with a complex pupil.

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references

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