基于目标姿态的弹目碰撞检测模型  

Model of projectile-target collision detection based on target attitude

作　　者：王刚[1] 梅卫[1] 刘恒[1] 

机构地区：[1]军械工程学院电子与光学工程系,河北石家庄050003

出　　处：《中国测试》2016年第3期81-84,共4页China Measurement & Test

基　　金：国家自然科学基金项目(61141009);国防"十二五"预研项目(40405070102)

摘　　要：为通过弹目碰撞检测统计命中弹数并计算武器系统的命中概率,研究建立基于目标姿态的弹目碰撞检测模型,根据目标外形建立等效几何体,利用空间解析几何分析弹丸与目标的位置关系,给出弹丸与目标碰撞的判读条件和计算公式。该模型不用考虑复杂的坐标变换,不涉及力学和动力学内容,能够高效地进行弹目碰撞检测。仿真实例结果表明:目标姿态能对碰撞检测产生明显影响,忽略目标姿态的检测模型会造成错判和漏检;同时也验证该模型的准确性和实时性。In order to calculate the hitting projectiles number and hitting probability of weapon system,a collision detection model based on target attitude was developed. Equivalent geometry of the target was built and the space location relation between shell and target was analyzed by analytic geometry at the same time. Then the judging condition and the calculating expressions of collision detection were proposed. The model can calculate hitting projectiles efficiently by evading coordinate transformation and dynamics. Simulation results indicated that collision detection must take the target attitude into account because the detection judgment could be affected by the target attitude markedly. They also illustrated that the algorithm had good accuracy and real-time characteristics.

关 键 词：仿真 碰撞检测 命中概率 解析几何 姿态 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]