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Avtometriya

2021 year, number 3

OPTOELECTRONIC SYSTEM FOR DETECTING RETROREFLECTIVE OBJECTS BASED ON PULSED LASER RADIATION SENSING

D.V. Alantiev1,2, S.M. Borzov1, S.N. Zhukov3, O.I. Potaturkin1, S.B. Uzilov1, A.P. Chikhonadskikh3
1Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Rzhanov Institute of Semiconductor Physics of the Siberian Branch of the Russian Academy of Sciences, Technological Design Institute of Applied Microelectronics, Novosibirsk, Russia
3Federal State Unitary Enterprise "State Research Institute of Applied Problems", Saint Petersburg, Russia
Keywords: detection of retroreflective objects, pulse laser location, optoelectronic system, retroreflection index, image processing

Abstract

The study is devoted to the development and research of a model of a pulse laser location system without the use of an image intensifier as an external shutter. The system is designed to detect retroreflective objects, including optical and optoelectronic surveillance devices. A description of the hardware and capabilities of the created special software is presented. The results of measuring the dependences of the signal value on the angle of rotation of the retroreflective objects relative to the direction of the optical axis of the pulse laser location system, on the distance to the object, and on the value of the aperture of its lens are presented. The parameters of retroreflection of typical video recording devices in real conditions are determined experimentally. A method is proposed and demonstrated for calculating the maximum detection range of retroreflective objects in the presence of information about their retroreflective index by measuring the informative signal at deliberately shorter ranges with an increased degree of diaphragming.