靶场光学测量空间脱靶量高精度计算方法

High-precision calculation method for spatial miss distance of optical measurement in range

针对靶场目前光学测量采用同帧画幅法计算空间脱靶量局限性大,计算繁琐和易出错等问题,提出一种基于几何向量的弹靶遭遇距离直接解算方法。根据向量运算原理以及光学测量三角几何关系推导出弹靶在发射系下位置坐标,实现了跟踪测量部位的修正统一,建立了空间脱靶量直接解算数学模型,并对脱靶量计算精度进行了有效估算。经试验数据验证:所提方法模型简单,计算速度快,不受同帧画幅限制及海上作战环境干扰,通用性强,脱靶量计算精度可达米级,能够满足靶场舰空系列武器系统考核和鉴定指标要求,可以推广应用。

At present,the same frame method is used to calculate the spatial miss distance in the optical measurement of the target range,which has great limitations,tedious and error-prone calculation and other problems.In order to solve these problems,a direct solution method of missile and target encounter distance based on geometric vector is proposed.The position coordinates of missile and target under launch system are deduced based on vector operation principle and triangulation relation of optical measurement,the tracking measurement position is corrected,the mathematical model of space miss is established,and the accuracy of miss is estimated effectively.The experimental data show that the model is simple,the calculation speed is fast,the same frame is not limited and the sea combat environment is not interfered with,the method has universality,the miss distance calculation accuracy can be up to meters level,can meet the requirements of ship-to-air weapon system evaluation and appraisal index,and can be popularized.