Spatial‐temporal scanning detection model and calculation method of laser fuze

Abstract

To scientifically evaluate the detection performance and detection ability of laser fuze, this study studies the double‐laser circumferential scanning detection method of laser fuze and its spatial‐temporal scanning detection model. According to the intersection relationship between projectile and target, the key parameters' calculation method of laser scanning detection is studied, and the spatial‐temporal scanning detection model and output signal model of laser fuze are established based on multi parameters in the detection system. Through calculation and analysis, the changing relationship between the laser detection ability under different laser beam incident angles, scanning frequency, deflection angle as well as other parameters and the laser echo under different deflection angles of laser fuze is discussed. The results show that when the emitted laser beam angle is fixed, the diameter of the detectable target becomes smaller and smaller with the increase of laser pulse frequency, that is, the detection ability of the laser fuze becomes higher and higher. At the same detection distance, the smaller the intersection angle of the missile and target, the stronger the laser echo power reflected by the target; when the detection distance and intersection angle increase, the detection probability of the laser detection system decreases significantly.