基于地磁传感器的点火脉冲选择策略分析

采用小型脉冲推力器组修正弹道偏差是提高火箭弹射击精度，减小落点散布的有效方法。但脉冲推力器的点火时机对射弹落点的控制能力有很大的影响，如何从脉冲发动机组中选择点火是弹道修正过程中的关键环节。文中在旋转弹有控弹道模型的基础上，提出了一种借助于地磁传感器测量，来控制脉冲推力器适时点火的策略。地磁传感器测量的数据不仅用于解算弹体飞行姿态，同时可通过计算给出点火脉冲发动机选择的方向基准。

Analysis of Culling Strategy of Ingition Pulse Based on Magnetic Sensor

Trajectory deflection correction by miniature improving rocket projectile firing precision and reducing pulse thruster groups is an efficiency method of the scattering of impact point. The controllability of the impact point is significantly effected by the firing time of these pulse thrusters. And firing the cor- rect jet at correct time is the key event in trajectory deflection correction. Based on the controlled trajectory model of rotating projectile, a strategy is presented on controlling firing time of pulse jet by using of magnetic sensor. The data measured by magnetic the projectile and giving the direction benchmark sensor can be used in calculating the flight attitude of of firing pulse jet.