Super-resolution rapid imaging device and imaging method for telescopic large field of view

Abstract

The device and imaging method for super-resolution fast imaging with large telescopic field of view belong to the field of super-resolution imaging technology. In order to solve the problem that the existing technology is not suitable for space debris detection and imaging, the device is coaxially equipped with a large-diameter telescopic objective lens in turn. , two-dimensional field of view diaphragm, relay lens group, pupil filter and CCD detector, the large-aperture telescopic objective lens and the relay lens group form the telescopic imaging system; the back focal plane of the large-aperture telescopic objective lens is the telephoto The primary image plane of the imaging system, the two-dimensional field diaphragm is placed at the rear focal plane of the large-aperture telescopic objective lens, and is used to select the incident light angle of a single imaging; the pupil filter is located at the rear end of the telescopic imaging system. The position of the pupil plane, whose effective aperture position and size coincide with the exit pupil plane; the CCD detector is located at the rear focal plane of the telescopic imaging system; the invention greatly improves the super-resolution imaging speed, which is beneficial to capture fast-moving targets, or Quickly image targets that occupy a large area in the full field of view.

Description

technical field [0001] The invention belongs to the technical field of super-resolution imaging, and specifically relates to a device and an imaging method for super-resolution fast imaging with a large field of view. Background technique [0002] Space debris is the space junk produced with human space launch activities. It is distributed in large quantities in the earth orbit (about 200-36,000 km high), causing obstacles to the normal operation of spacecraft and the personal safety of astronauts. It is urgent to carry out observations, A series of scientific research such as cataloging, tracking, and orbit determination, and detection imaging is the basis of the above research. Since the size of the debris is mostly centimeter-level (500,000 pieces between 1-10cm and about 30 million pieces less than 1cm), and the flight speed is very fast (7-10km / s), high-resolution fast imaging methods are required. [0003] Due to the diffraction phenomenon of light, the angular resolu...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the prior art is not suitable for detection and imaging of space debris, the present invention provides a device and imaging method for super-resolution fast imaging with a large field of view. Under limited conditions, super-resolution fast imaging within the large field of view of the telescopic system can be realized

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