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Proceedings Paper

Multi-spectral modulation detection of co-phasing errors for sparse-optical-synthetic-aperture systems
Author(s): Li Dong; Qi Peng; Haotong Ma; Zongliang Xie; Zhipeng Wang
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Paper Abstract

The sparse-optical-synthetic-aperture systems enlarge the aperture and increase the spatial resolution of telescope system via several sub-apertures distributed in specific way. The difficulty of its realization lies in detecting and correcting co-phase errors of the sub-apertures. This paper proposed the method of multi-spectral modulation detection of co-phasing errors for sparse-optical-synthetic-aperture systems. The method can detect the errors via phase modulation on a sub-aperture in the situation of different wavelengths. Firstly, this paper introduced the theory and implementation process of the method in detail. Then the paper analyzed the detection performance of the method and the influence of the sub-apertures structure on detection performance based on a three-sub-aperture system. These results show that the method can accurately detect the sub-apertures' co-phasing errors of the sparse-optical-synthetic-aperture systems. Compared with the current methods, the method proposed in this paper has many advantages, such as faster detection speed and wider detection range.

Paper Details

Date Published: 24 October 2016
PDF: 8 pages
Proc. SPIE 9682, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 96820W (24 October 2016); doi: 10.1117/12.2243230
Show Author Affiliations
Li Dong, Institute of Optics and Electronics (China)
Key Lab. of Optical Engineering (China)
Univ. of Chinese Academy of Sciences (China)
Qi Peng, Institute of Optics and Electronics (China)
Key Lab. of Optical Engineering (China)
Haotong Ma, Institute of Optics and Electronics (China)
Key Lab. of Optical Engineering (China)
National Univ. of Defense Technology (China)
Zongliang Xie, Institute of Optics and Electronics (China)
Key Lab. of Optical Engineering (China)
Univ. of Chinese Academy of Sciences (China)
Zhipeng Wang, Institute of Optics and Electronics (China)
Key Lab. of Optical Engineering (China)
Univ. of Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 9682:
8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
Myung K. Cho; Bin Fan, Editor(s)

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