Method for in-orbit tuning of a space telescope

Abstract

The present application relates to the technical field of optical system, especially to a method for in-orbit adjustment of a space telescope, comprising: obtaining a sensitivity matrix of each field of view of an imaging system corresponding to a secondary mirror offset amount by using an optical design software; obtaining a point spread function of each field of view based on the sensitivity matrix of each field of view; obtaining a captured image of each field of view, and for each field of view, performing deconvolution processing on the corresponding captured image based on the point spread function to obtain a latent image after image quality optimization; for each field of view, obtaining a deconvolution normalization lifting amount based on the latent image after image quality optimization and the captured image, constructing a global evaluation function based on the deconvolution normalization lifting amount of each field of view, and obtaining an optimal offset amount when the global evaluation function takes a minimum value by using an optimization algorithm; and correcting the pose of the secondary mirror based on the optimal offset amount. H The present application is at least beneficial to realize accurate compensation of full-field aberration.

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