Share Email Print
cover

Proceedings Paper

Wide-field imaging design and image restoration with optical sparse-aperture system
Author(s): Dayong Wang; Jun Chang; Hancheng Liu; Hongfeng Guo; Shiquan Tao
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

An optical configuration design is presented for the ground testbed. The system includes three sub-telescopes as the collecting elements, and a combination telescope. The goal is to produce an image with a "quality" equivalent to a filled monolithic aperture. The system has a diffraction limited field-of-view of 0.1 degrees. The subsystem utilizes non-spherical primary and secondary mirrors. Also, several image restoration techniques are analyzed in details, which are applied to sparse-aperture imaging system in frequency domain. The performances of the restoration techniques are compared under different circumstances, such as the aperture configurations, the fill factors, and the level of noise. The correlation coefficient is proposed as a criterion to determine optimal parameter, and evaluate the performance of algorithms. Simulation results demonstrate its possibility. Some suggestions are given for better restoration(resolution) of sparse-aperture imaging system.

Paper Details

Date Published: 9 June 2006
PDF: 7 pages
Proc. SPIE 6149, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 61493B (9 June 2006); doi: 10.1117/12.674347
Show Author Affiliations
Dayong Wang, Beijing Univ. of Technology (China)
Jun Chang, Beijing Institute of Technology (China)
Hancheng Liu, Beijing Univ. of Technology (China)
Hongfeng Guo, National Astronomical Observatories (China)
Shiquan Tao, Beijing Univ. of Technology (China)


Published in SPIE Proceedings Vol. 6149:
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Li Yang; Shangming Wen; Yaolong Chen; Ernst-Bernhard Kley, Editor(s)

© SPIE. Terms of Use
Back to Top