基于声学传感网络的弹着点定位系统

Measurement System for Projectile Impact-points Based on Acoustic Sensor Network

为了改变广域靶场内火炮系统弹道点测试依靠人工报靶的现状,建立了基于多声学传感器节点的弹丸落点声学测量系统,以实现脱靶量的实时准确测量。在考虑温度和风速等气象环境的影响下,利用阵列定向的网格搜索方法和TDOA定位方法,设计了适用于火炮弹丸声学传感网络目标定位的算法,通过模拟试验和静爆试验进行了测试。结果表明:测试区域边长在300 m量级时定位误差小于1 m,测试区域边长在3 km量级时定位偏差在6 m以内,因此该系统可用于弹着点实际定位测量,对实践应用具有重要意义。

To obtain the accurate coordinates of projectile impact-points, the acoustic sensor network （ASN） composed of distributed multi-sensor was adopted to monitor and locate the impact-points. Under consideration of atmospheric conditions, such as temperature and wind, the location algorithm was presented based on grid search and TDOA algorithm. The simulations and explosive experiments were carried out. The results show that the location error is less than 1 m in an area of 300 m × 300 m. In an area of 3 km x 3 km, the location error is less than 6 m. The system is feasible to locate the projectile impact-points, and it is great important in practical application.