Experimental Studies of Infrared Photodetector Arrays for Detection of Small Objects
A. N. Galyantich1, I. S. Gibin2, V. V. Zolotsev1, M. V. Kiselev1, G. V. Kolesnikov3
1 Branch of Yalamov Ural Optical and Mechanical Plant Ural SibNIIOS
2 Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences
3 Novosibirsk State Technical University
gibin@iae.nsk.su, z_w_w@mail.ru
Keywords: black body, photodetector array, experimental bench, test object, contrast, detection system
Pages: 95-101
Abstract
This paper presents the results of experimental studies of staring infrared photodetector arrays (PDAs) designed for use in object recognition systems. A special bench was developed to determine the threshold sensitivity of PDAs to spot irradiation, i.e., the minimum excess of the signal power over the background with allowance for the measuring path and its performance. Estimations were made of the root-mean-square (RMS) noise of the PDA element which determines the detection threshold of the excess of the radiation power of an object over the background in the plane of the entrance pupil.
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