钻地弹引信定深爆炸控制算法

Arithmetic of blast depth controlling of penetrator fuse

为实现定深爆破,利用惯性测量原理,合理配置钻地弹引信上加速度计空间位置。通过对加速度计输出信息的实时处理,获得了钻地弹侵彻过程中加速度和角速度信息。求解四元数微分运动方程,计算出弹体坐标系和惯性坐标系之间的变换矩阵。分解了方向余弦矩阵,将加速度计输出转换为钻地弹沿惯性坐标系的加速度分量。二次积分加速度分量,得到钻地弹瞬时轨迹信息,为定深引信提供了炸深控制参数。

To carry out fixed-depth blast, the principle of inertial measurement was used, accelerometers on the fuse of the earth penetrator collocated, the information of the acceleration and angle velocity of the earth penetrator via the output of the accelerometers obtained, the value of the differential equation got, the direction cosine matrix in real time between the bursts＇ coordinate and inertial coordinate calculated, and the output data of the accelerometers transformed into the component of acceleration along the inertial coordinate by analyzing the direction cosine matrix. The instantaneous information about the earth penetratorp track was obtained, and the fixed-depth control parameter for fixed-depth fuse was provided.