An interference-based ultrathin high-resolution flat plate imaging detection system

Abstract

The invention provides an interference-based ultrathin high-resolution flat plate imaging detection system which mainly solves the problems of few lens array frequency collection points and poor system imaging quality of the conventional imaging detection system. The system comprises a lens array, a photon integrated circuit, a digital signal processor and an image reconstruction module. The lensarray is inlaid in a fixing plate and the photo integrated circuit is located on the focal plane of the lens array; the lens array consists of a round lens and a plurality of radiating strip-shaped lenses arranged outside the round lens in a radiating manner; namely, each radiating strip-shaped lens is provided with a plurality of small lenses and the radiating strip-shaped lenses are inlaid in the disc-shaped fixing plate to form the wheel disc-type lens array and the middle of the wheel disc-type lens array is filled with the round lens. The system effectively increases the number of high frequency information collection points and improves the system imaging quality and can be applied to space reconnaissance, monitoring and early warning and space situation awareness.

Description

technical field [0001] The invention belongs to the technical field of optical imaging, in particular to an ultra-thin high-resolution flat-panel imaging detection system, which can be used for space reconnaissance, monitoring and early warning, space situation awareness and astronomical observation. Background technique [0002] In recent years, the rapid development of photonic integrated circuit technology and interference imaging technology has made it possible to develop high-resolution flat-panel telescope systems. The ultra-thin high-resolution flat-panel imaging method based on interference is just a revolutionary new concept that uses photonic integrated circuit technology to realize high-resolution optical interference reconstruction imaging, and has become an important frontier in the development of advanced optical remote sensing imaging technology. [0003] Compared with the traditional photoelectric imaging system, the ultra-thin high-resolution flat-panel imag...

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Problems solved by technology

[0005] Domestically, there is a good accumulation of synthetic aperture interference imaging theory and technology for radio telescopes and optical telescopes, but there are relatively few studies on interference-based ultra-thin and high-resolution flat-panel imaging detection systems. At present, the reconstructed image quality of flat-panel imaging systems Poor contrast, loss of information, and insufficient resolution are ubiquitous

Numerical simulation and optimal design of Segmented Planar Imaging Detector for Electro-Optical Reconnaissance published on Optics Communications by Chuqiuhui, Shen yijie, Yuan Meng of Tsinghua University, proposed a method for adjusting the baseline pair of the flat panel imaging detection system, and by adjusting the nano The sampling interval of Quest, optimizing the baseline pairing method, and increasing the number of spectral channels of arrayed waveguide gratings have improved the imaging quality of the flat-panel imaging detection system, but there are still problems of poor image quality and serious loss of high-frequency information, which affect the imaging quality of the system

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