机载火炮对地攻击训练弹着点大范围探测激光靶

Laser Target for Large-range Detection of Impact Point of Air-to-ground Attack Training Projectile from Airborne Gun

针对机载火炮对地攻击训练弹着点大范围探测需求,提出了基于宽波束、高重频脉冲激光测距技术的激光靶探测定位方法。提供了1种由4台激光探测器构成的开放式激光立靶在靶场的布设方案,建立了在空间坐标系中解算弹丸末端弹道参数的数学模型,给出了均值法和线性回归拟合法的定位误差修正。试验验证了这种激光靶探测及其数据处理的有效性,对于建立可在野外大范围内探测高速弹丸、客观评定训练成绩、安装和撤收方便的报靶系统提供了可行途径。

A laser target detection and positioning method based on the wide-beam and high repetition frequency pulse laser rangefinding technology is presented for a large-range detection of impact point of air-to-ground attack training projectile launched from airborne gun. The proposed method provides a layout scheme of open laser vertical target in shooting range,which is composed of four laser detecting modules. A mathematic model of calculating the projectile terminal ballistic parameters in spatial coordinates is established,and the positioning error correction is made by averaging method and linear regression fitting method. The effectiveness of laser target detection and data processing method is verified through experiment. The present paper provides afeasibe way for establishing a target scoring system which can detect the high-speed projectiles in large range field,evaluate the training records objectively,and is installed and withdrawn conveniently.