The Coded Laser Light Screen and Multi-Target Dynamic Parameter Measurement Method

Abstract

The coded laser light screen is studied which can not only measure the TOF of the projectile but also the one-dimensional position information of the projectile in the light screen corresponding to the coded laser. Based on the analysis of the  LSPTS generated by the light screen a coded laser light screen measurement model is designed, which can reduce the dynamic parameter measurement of the projectile from four light screens to two light screens. Based on the proposed measurement model, a multi-target recognition algorithm is developed to solve the problem of projectile tracking and warhead fragmentation measurement in rapid-fire weapons. The simulation analysis of the measurement accuracy of the measurement model shows that the coordinate measurement error is less than 1.5mm in the horizontal direction, the coordinate measurement error is less than 2.5mm in the vertical direction, and the maximum integrated error is 3.8mm in the 1m×1m rectangular target plane.

Keywords: Photoelectric measurement, Light screen array measurement system, Coded laser light screen, Multi-target, Dynamic parameter