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A detection method of laser-screen by considering the cross-section attenuation coefficient and its application in projectile’s coordinate parameters measurement system

HANSHAN LI1,*

Affiliation

  1. School of Electronic and Information Engineering, Xi’an Technological University, Xi’an 710021, China

Abstract

To improve the detection ability of a laser-screen and optimize application in projectile’s coordinate parameters measurement, this paper proposes a new design method and detection model of laser-screen, uses the high power line lasers as an active light source and one-dimensional multi-unit PIN detector as the core detection and receiving device in receiving optical path module to form laser detection screen with a fan-shaped detection plane, and gives the imaging principle of the reflected laser energy of projectile in laser detection screen and the calculation method of defocus parameters of projectile’s image information. We establish the cross-section attenuation coefficient model and the calculation function of the surface laser reflection energy of the projectile, and deduce the characterization function of the output signal that contains projectile information by considering the influence of the radiation of the sun, the earth and other radiation sources on the detection system. In addition, combined with environmental noise, the correlation model of detection probability and false alarm probability of laser-screen was derived. By applying the design of laser-screen to the projectile’s coordinate parameters measurement system, the feasibility and correctness of the proposed theoretical method are verified by the test of real projectile..

Keywords

Laser-screen, Laser detection screen, Detection probability, Bidirectional reflection distribution function, Projectile coordinate parameters measurement system.

Submitted at: March 15, 2023
Accepted at: Oct. 6, 2023

Citation

HANSHAN LI, A detection method of laser-screen by considering the cross-section attenuation coefficient and its application in projectile’s coordinate parameters measurement system, Journal of Optoelectronics and Advanced Materials Vol. 25, Iss. 9-10, pp. 424-437 (2023)