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研究了末段修正迫弹激光探测器的工作原理,对激光探测器修正区域进行了分析,推导了地面坐标系与激光探测器坐标系的坐标变换公式,建立了激光探测器模型;研究了利用目标光斑位置求解目标方位角和跟踪误差角的方法,建立了目标方位模型。仿真计算表明:末段修正时必须选择合适的弹体转速,转速太低会造成对目标的漏扫;通过对末段弹道进行多次修正能够显著提高迫弹的落点精度。本文所建立的激光探测器模型和目标方位模型为末段修正迫弹的弹道模型建立和外弹道仿真计算打下了基础。
The working principle of the modified projectile laser detector in the final stage is studied. The correction area of the laser prober is analyzed. The coordinate transformation formulas of the coordinate system of the ground and the laser detector are deduced. The laser detector model is established. The method of solving the target azimuth and the tracking error angle at the target spot location is used to establish the target azimuth model. The simulation results show that the correct revolving speed of the projectile must be chosen in the final correction, and the low speed of the revolving projectile will cause the missed escape of the target. The accuracy of the landing accuracy of the projectile can be significantly improved by multiple corrections of the last trajectory. The laser detector model and target orientation model established in this paper laid the foundation for the establishment of the ballistic model of the final modified projectile and the calculation of the external trajectory.