Analysis of comprehensive influence of piston error and subapertures' aberrations upon sparse-optical-synthetic-aperture systems' image quality for the broadband target wave

Zheng Liu; Sheng-Qian Wang; Lin-Hai Huang; Chang-Hui Rao

doi:10.1117/12.905883

5 December 2011 Analysis of comprehensive influence of piston error and subapertures' aberrations upon sparse-optical-synthetic-aperture systems' image quality for the broadband target wave

Zheng Liu, Sheng-Qian Wang, Lin-Hai Huang, Chang-Hui Rao

Author Affiliations +

Proceedings Volume 8197, 2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments; 819716 (2011) https://doi.org/10.1117/12.905883
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

Abstract

To improve the sparse-optical-synthetic-aperture system's image quality, the impacts of sub-apertures' aberrations and piston errors should be considered comprehensively for broadband target wave. Based on basic optic principles, the system's Strehl Ratio (SR) for broadband target wave was deduced thoroughly, which led to the analysis about variances of the system's SR metric under different sub-apertures' aberrations and piston errors. The results showed that for broadband target wave, the system's image quality is jointly influenced by sub-apertures' aberrations and the piston error, and the correction of piston errors is meaningful only when the sub-apertures' self aberrations are controlled with certain limit.

Citation Download Citation

Zheng Liu, Sheng-Qian Wang, Lin-Hai Huang, and Chang-Hui Rao "Analysis of comprehensive influence of piston error and subapertures' aberrations upon sparse-optical-synthetic-aperture systems' image quality for the broadband target wave", Proc. SPIE 8197, 2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 819716 (5 December 2011); https://doi.org/10.1117/12.905883

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