Automated and seamless spectral processing and wavelength calibration method for space objects

Abstract

The invention relates to an automatic seamless spectrum processing and wavelength calibration method for space objects. The method comprises the steps of: classifying and preprocessing the spectral image of the space object; performing preprocessing on the background and dark field images of the two-dimensional spectrum of the space object and the calibration lamp; and performing preprocessing on the spectrum of the space object The steps of identifying, locating, and cutting; the steps of identifying and locating the calibrated light spectrum, and then cutting; the steps of tracing, rotating and extracting the cut calibrated light spectrum; The steps of fitting the light spectrum to the dispersion equation; the steps of performing flat-field correction on the two-dimensional spectrum of the space object by using the multi-band flat field captured according to the dispersion equation; tracking, rotating and extracting the cut two-dimensional spectrum of the space object steps for wavelength calibration; and steps for archiving all observations.

Description

technical field [0001] The invention relates to the field of space object data processing, in particular to a fast processing method for space object seamless spectrum. Background technique [0002] In view of the advantages of being able to observe multiple targets at the same time, not being limited by slits, and not requiring high pointing accuracy, seamless spectrum has a wide range of uses in space objects and other aspects, especially if it is equipped with a large field of view telescope, it can Large-scale and efficient spectral surveys. However, its data processing has great technical difficulties, especially to carry out uniform flat-field correction on each wavelength, and accurate wavelength has always been a time-consuming and laborious work, requiring a lot of manpower and material resources, and for the observation of space objects, etc. , it is necessary to obtain the final processing results quickly or even in near real time. Therefore, a new automated dat...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for automatic seamless spectral processing and wavelength calibration of space objects, which is based on traditional spectral data processing and wavelength calibration, and can solve the problem of automatic and efficient batch processing of seamless spectra

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