Design on the large sensor area light screen for velocity measurement of the flying projectile indoor

Fen, Gao; Ni, Jian; Hui, Tian; Dong, Tao; Feng, Bin

doi:10.3788/gxjs20123802.0175

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although the existing photoelectric testing systems with intersecting detection areas are widely used in various shooting ranges, it is di cult to meet the requirements of high sensitivity and large-area velocity measurement at the same time [9,10]. e indoor one-kilometer ballistic range velocity measurement system based on lens-type high-velocity small target velocity measurement technology lls the technical gap in this eld [11]. However, in the actual test process, the projectile ies at supersonic or transonic velocity when its ying velocity is between 350 and 450 m/s.…”

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

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%