Design method of super-resolution telephoto imaging system with large field of view intensity tolerance

Abstract

The design method of a super-resolution telescopic imaging system with a large field of view and strong tolerance belongs to the field of far-field super-resolution imaging technology. For the problem of excessive requirements, this method first sets the working wavelength, aperture, F number, and field of view of the entire system, and finds the main lobe width of the Airy disk in the diffraction limit of the system; then uses the global optimization algorithm to design the pupil modulator Modulation function; Next, design the optical substrate system, use operands in ZEMAX software to limit coma and astigmatism, and monitor spherical aberration; use macro language to write custom operands and call them, so that rings at different fields of view and wavelengths The surrounding radius is similar and as small as possible; then the pupil modulator is placed at the position of the pupil or pupil intermediate image in the optical base system, and the position of the image plane is fine-tuned back and forth with a certain step size until the PSF of each field point The shape is round and nearly uniform.

Description

technical field [0001] The invention belongs to the technical field of far-field super-resolution imaging, and in particular relates to a design method for a super-resolution telescopic imaging system with a large field of view and strong tolerance. Background technique [0002] Compared with ground-based space target detection methods, space-based space detection methods have irreplaceable advantages: (1) not affected by the earth's atmosphere, which is the main reason for limiting the resolution and accuracy of ground-based space target detection; (2) through reasonable The orbit design can realize close-range observation of space targets, which can greatly improve detection resolution and accuracy; (3) can obtain a larger observation range; (4) can work around the clock. Due to the long distance of the space target, the space-based optical detection system is basically a telescopic imaging system, and its optical resolution is strictly limited by the Rayleigh criterion 1....

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing super-resolution telescopic imaging system has a small imaging field of view and requires too high precision in the processing and adjustment of the optical system, the present invention proposes a super-resolution telescopic imaging system with a large field of view and strong tolerance design method

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