基于震动信号的靶场炮弹落点定位系统设计

Design of Projectile Landing Point Positioning System Based on Vibration Signal

针对靶场弹体发射试验中弹丸落点难以准确判断,造成回收弹体较为困难的问题。利用LoRa技术搭建无线组网,设计基于震动信号的弹体落点定位系统通过采集弹体落地时冲击地面产生的震动波信息,根据TDOA定位算法对着落点进行定位,实现弹丸的快速回收。实验证明,该系统对落点定位精度可以达到1m。极大地方便了靶场试验中对弹丸的回收工作。

In view of the difficulty of accurately judging the projectile landing point in the projectile launching test at the shooting range,it is difficult to recover the projectile.Using LoRa technology to build a wireless network,a projectile landing location system based on vibration signals is designed.By collecting the shock wave information generated by the projectile impacting the ground when it hits the ground,the landing point is located according to the TDOA positioning algorithm to realize the rapid recovery of projectiles.Experiments show that the positioning accuracy of the system can reach 1m.It greatly facilitates the recovery of projectiles in the shooting range test.It has high practical value in large-scale distributed vibration data acquisition applications such as explosion fields.