Industrial Automatic Control Systems and Controllers Annotation << Back Issues of Aircraft Detection in the Thermal Infrared Range under Changing Meteorological Conditions Alieva G.V. The article is devoted to optimization of aircraft detection in the thermal infrared range under changing meteorological conditions. It is shown that reducing the probability of "false alarm" in aircraft detection requires increasing the signal-to-noise ratio in the system, which is equivalent to reducing the detection distance. The presence of a positive correlation between atmospheric transmittance and the signal-to-noise ratio leads to a decrease in the average detection distance when imposing an integral constraint on the specified functional relationship. Keywords: thermal infrared range, optimization, aircraft, detection distance, signal-to-noise ratio. DOI: 10.25791/asu.4.2025.1573 Pp. 03-06.