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BAOYI GUO1,* , ZHIYONG LEI1, YAN WANG1
According to the detection mechanism of the missile guidance photoelectric detection system, combining the distribution function of the imaging spot of laser reflected by target surface, the experimental illuminance and the size of the photosensitive surface of photoelectric receiving detector, we study the illuminance distribution characteristics of the target imaging spot and set up the calculation model of illuminance distribution. Based on this model, we establish the output voltage signal function of the missile guidance laser photoelectric detection system, and then derive the calculation model of the signal-to-noise ratio of the system using the experimental illuminance, the thermal noise and the target radiation photon noise. Through experimental test and analysis, the results show that the target imaging spot energy at different detection distances is different, which makes the peak of the output voltage signal of the system significantly different. At the same time, with the increase of the detection distance, the laser echo energy decreases, and the peak of the output voltage signal of the system also decreases. In addition, we verify the illuminance distribution of target imaging spot under different detection distances.
Missile, Guidance, Laser, Photoelectric detection, Echo, Signal-to-noise ratio.
BAOYI GUO, ZHIYONG LEI, YAN WANG, Illuminance distribution of target imaging spot and detection model of missile guidance laser photoelectric detection system, Optoelectronics and Advanced Materials - Rapid Communications, 15, 11-12, November-December 2021, pp.593-600 (2021).
Submitted at: July 27, 2021
Accepted at: Nov. 24, 2021
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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