Projectile flight parameters measurement method based on the spatial distribution of light-screen thickness

Chen, Rui; Rong-li, Cai; Ji, Bowen

doi:10.1016/j.measurement.2022.111143

Cited by 2 publications

(1 citation statement)

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“…As one of the important indicators, projectile velocity makes the range test one of the important links in the inspection of guns, cannons, ammunitions, and propellants [1][2][3][4]. Accurately measuring the multipoint velocity in the outer trajectory of the weapon system plays a vital role in the design of the projectile and the improvement of the battle e ectiveness of the weapon system [5][6][7]. With the development of new weapon systems, the need for building an indoor full-trajectory test platform for light weapons has become increasingly urgent [8].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Velocity Measurement for Transonic Projectiles in Indoor Long Ballistic Range

Rong-li

Tan

Chen

et al. 2022

Mobile Information Systems

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The indoor one-kilometer projectile velocity measurement system cannot accurately identify the transonic projectile signal due to the interference signals generated by aerodynamics and other factors. To solve this problem, theoretical prediction of the projectile velocity at the transonic velocity measurement point is calculated by external ballistic numerical simulation technology based on the motion law of the center of projectile mass and the known measurement parameters of the indoor measurement system. In the measurement, a fast cross-correlation algorithm is used to process the projectile signals including interference signals and obtain velocity values at the measurement point. Then the theoretical prediction is used as the reference standard and the velocity with the smallest absolute value of the absolute error is selected as the desired measured value. A 5.8 mm rifle bullet is used to conduct an indoor one-kilometer live experiment. The results show that the relative errors between the measured value obtained by this method and the theoretical prediction are less than 1%, which eliminates the influence of interference signals and provides a new method for the accurate measurement of the transonic projectile velocity.

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