Open AccessRecalculation of the brightness of stars in the sensitivity band of an arbitrary receiver of radiation in the visible range
Author(s) -
А. О. Жуков,
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М. Е. Прохоров,
A. I. Zakharov,
A. V. Biryukov,
Igor Kartsan,
Vladimir Skripachev,
AUTHOR_ID,
AUTHOR_ID,
AUTHOR_ID,
AUTHOR_ID,
AUTHOR_ID,
AUTHOR_ID
Publication year - 2022
Language(s) - English
Resource type - Conference proceedings
DOI - 10.47813/dnit-mip5/2022-3091-33-37
Subject(s) - brightness , physics , stars , shadow (psychology) , brightness temperature , sensitivity (control systems) , orientation (vector space) , optics , radiation , position (finance) , noise (video) , range (aeronautics) , computational physics , astrophysics , computer science , mathematics , image (mathematics) , materials science , geometry , artificial intelligence , electronic engineering , psychology , finance , composite material , economics , psychotherapist , engineering
A procedure is described for calculating the brightness of stars in a band that does not coincide with the bands of their observation. As an example, we took the calculation for the navigation catalog of the star sensor. We present a way to reduce the orientation error by increasing the accuracy of determining the position of the photocenter of the star image on the radiation receiver - a charge-coupled matrix device. The most difficult is the accounting of the shadow signal. First, the rates of thermogeneration strongly depend on temperature. Second, the scatter of average values of thermogeneration rates in individual elements is many times greater than the random scatter (noise) in each of them. Thirdly, in addition to "normal" elements in the charge-coupled matrix device there are "hot" elements, the rates of thermogeneration in which are tens to hundreds of times higher than in "normal" elements and may have a different dependence on temperature.