Algorithm and software for calculation of an IR optoelectronic system with a photodetector array
I.V. Znamenskii1, A.A. Tikhomirov2
1NPC "Precision instrument Systems", Moscow, Russia
2Institute of Monitoring of Climatic and Ecological Systems of the Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia
Keywords: optoelectronic system, photodetector array, IR range, threshold illumination, time of accumulation, signal-to-noise ratio, calculation algorithm and program
Abstract
An algorithm for energy calculation of the threshold illumination of the entrance pupil of an optoelectronic system (OES) in the range 0.9-5.3 mm is presented. The dependence of the time of accumulation tac on the photodetector array on the rate of counting signal photons n s, as well as the dependence of n s on the signal-to-noise ratio are derived. The illumination of the entrance pupil of the OES lens from a spherical space object illuminated by the Sun is calculated. The program is developed and its interface is presented for the energy calculation of the OES in various sections of the considered IR range.
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