一种防空指令修正弹控制模式研究

A control mode of antiaircraft command correction projectile

针对防空指令修正弹的方案设计问题,探讨了一种通过选择弹丸在有控段某点停止控制而恰能完成修正指标的外弹道控制模式,推导了有控弹丸平均侧向速度和剩余飞行时间的估算公式,给出了最佳停控点的确定判据。对上述控制模式进行了仿真计算,得到不同修正条件下的侧偏修正量及攻角曲线。仿真结果表明,该控制模式具有较高的控制精度,侧偏修正最大误差不超过±2.5%,且在该模式下弹丸也可保持飞行稳定。该研究结果可用于指导防空指令修正弹的方案设计。

In order to design the scheme for the antiaircraft command correction projectile, a control mode was discussed, which could accomplish the course correction by selecting the stopping control point during its controllable flight. The estimated formulae of average lateral velocity and remanent time were deducted. The criterion of the ideal stopping control point was given. With the control mode, a simulation was carried out. The tables of lateral correction under different conditions and curves of attack angle were obtained. The result shows that this control mode has higher accuracy and the maximum error rate is less than ±2.5%. The flight stability of projectile can be maintained under this control model. These results obtained can be applied to the scheme design.