Temporal and spatial domain detection model and method of infrared photoelectric detection target

被引:10
|
作者
Zhang, Xiaoqian [1 ]
Li, Hanshan [1 ]
Gao, Junchai [1 ]
机构
[1] Xian Technol Univ, Sch Elect & Informat Engn, Xian 710021, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1364/AO.427671
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
To improve the detection ability of photoelectric detection targets under low-illumination conditions, based on the traditional infrared photoelectric detection targets, in this paper, we propose a design method for an infrared detection screen by using a double high-power line laser interactive layout auxiliary mode, and we form an active infrared photoelectric detection target. We then establish the calculations of the laser beam's illumination and the emission power of the pulse laser as a projectile passes through the infrared detection screen. According to the relation of the thickness of the infrared detection screen, the time period over which the projectile passes through the infrared detection screen, and the projectile's spatial position, we use the grid division method to establish the temporal- and spatial-domain echo power model and the output signal voltage function of the active infrared photoelectric detection target. Through calculations and experimental analysis, it is found that the echo power is reduced as the detection distance is increased, and the intensity of the echo power is not linear with the thickness of the detection screen or the length of the projectile in the temporal and spatial domains. The detection performance of the proposed active infrared photoelectric detection target is better than the traditional infrared photoelectric detection target, and it can be improved to a certain extent by increasing the laser emission power appropriately. (C) 2021 Optical Society of America
引用
收藏
页码:7437 / 7445
页数:9
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