Research on Simulation and Generation Technology of Optical Signal of High-Speed Projectile Passing through Target Based on Acousto-Optic Modulation

Abstract

In the field of evaluating the parameters of the weapon, since the true value of the velocity of the projectile under measure is unknown, the method of absolute metrology for the accuracy of the optoelectronic velocity measuring systems cannot be achieved. In response to this problem, this paper constructs the system and method for simulating the generation of optical signals for projectiles passing through the target. The mathematical modeling of the process of the projectile passing through the target is carried out, and the virtual instrument is used to generate the ideal signal of the projectile with adjustable size and velocity required, and then use the acoustooptic modulation technology to modulate the laser intensity, thereby simulating the optical signal of the projectile during the operation of the measuring system in the environment of live fire shooting. The results show that the simulation of the signals can be achieved with a linear correlation coefficient of up to 90%. Therefore, use this signal to input to the detection terminal of the optoelectronic velocity measuring systems to simulate the projectile passing through the measuring screen, the performance parameters of the measuring system can be verified and tested in the indoor laboratory.