基于空中观测平台的弹丸落点坐标测量方法

Coordinate measurement method of projectile impact point based on aerial observation platform

为了克服靶场弹丸落点坐标测试手段地面观测平台受地形地貌、视场角、通视等条件制约,效率低下、准确性低,存在安全隐患等缺点,提出空中观测平台的弹丸落点坐标测量方法。该方法快速获取弹丸落点概略坐标,将空中平台移至概略坐标附近的上空,使用激光雷达对落点附近进行快速扫描,获取弹坑大小、深度及精确的定位信息。试验结果表明:实时快速测量的定位精度优于5 m,激光雷达定位识别精度优于5 cm。可满足靶场对弹丸落点坐标测试快速、准确、高效等要求。

In order to overcome the disadvantages of low efficiency,potential safety hazards and low accuracy of the existing projectile impact point coordinate measurement methods in the shooting range,which are restricted by the terrain,field angle and intervisibility,a projectile impact point coordinate measurement method based on air observation platform is proposed.This method first quickly obtains the approximate coordinates of the projectile impact point,then moves the air platform to the sky near the approximate coordinates,and uses the laser radar recognition and positioning technology to quickly scan the vicinity of the impact point to obtain the crater size,depth and accurate positioning information.Finally,the experimental verification proves the effectiveness and accuracy of this method.The test results show that the positioning accuracy of real-time rapid measurement is better than 5 m,and the positioning and recognition accuracy of lidar is better than 5 cm.It can meet the requirements of rapid,accurate and efficient measurement of projectile impact point coordinates in the shooting range.