基于舰体坐标系的瞄准线与火力线稳定模型

Stabilization Model of Line of Sight and Axis of Firepower Based on Warship Coordinate System

提出并建立了一种基于舰体坐标系的舰载武器系统的稳定方法和稳定模型。此模型利用了球坐标系的二维定向原理和直角坐标系的三维空间定点特点,运用姿态转换矩阵实时进行姿态坐标转换和直角坐标与球坐标相互变换,实现舰体在三维空间摇摆情况下,用舰载武器系统的二维运动实现对武器系统的目标探测瞄准线和弹丸发射火力线的分别稳定。从而保证了在舰体摇摆情况下,目标探测单元的瞄准线始终对准目标,而火力单元的火力线始终指向弹丸与目标的未来相遇位置。

A kind of stable method and model of warship-borne weapon system was established based on warship＇s coordinate system. The model made use of 2D-oriented principle of spherical coordinate system and 3D space fixed point characteristics of rectangular coordinate system. The real-time attitude coordinate transformation and real-time mutual conversion between rectangular coordinate system and spherical coordinate system were performed by means of attitude conversion matrix so as to realize respective stabilization of the line of sight and the axis of firepower of weapon system by use of 2D movement of warshipborne weapon system when the warship was swinging in 3D spaces. Thus this method can ensure that the line of sight of target detection unit consistently aims at the target, and the axis of firepower of the firepower unit consistently points to future impact point of target and projectile under the condition of the warship sway.