Mr. Wei Zhu Profile

Wei Zhu

at Shanghai Aerospace Control Technology Institute

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Proceedings Article | 27 March 2022 Paper

A new structure of synthetic aperture system

Zhen Xu, XingLong Li, Che Liu, Jianguo Tian, Wei Zhu

Proceedings Volume 12169, 1216968 (2022) https://doi.org/10.1117/12.2624736

KEYWORDS: Imaging systems, Modulation transfer functions, Point spread functions, Integrated optics, Synthetic aperture imaging

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The optical synthetic aperture imaging system based on integrated optics obviously decreases the dimension and weight by integrating thousands of micro-lenses and optical waveguide arrays on a planar substrate, but the structure of aperture array is still one of the important factors affecting the imaging quality of system. Therefore, a new micro-lenses array of the optical synthetic aperture imaging system is proposed as micro-lenses array in the shape of windmill which in front of the integrated optical interference system. The theoretical basis of synthetic aperture imaging system is introduced. Build the mathematical model of “windmill” and SPIDER micro-lenses array. Use computer digital simulation experiment to calculate and compare about the peak signal-to-noise ratio (PSNR) and modulation transfer function (MTF) of two kinds of synthetic aperture structure. The experimental results show that the new structure has the advantage of easy fabrication, and the imaging quality is better than the others.

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