利用导引头测角信息进行遭遇段剩余飞行时间估计的算法

The Algorithm of Time-to-go Using Angle Information Provided by Seeker During Missile-target Encounter

反战术弹道导弹的导弹性能很大程度上取决于导弹引信和战斗部,为了提高反战术弹道导弹的毁伤概率,一个简洁而有效的延时估计算法是至关重要的。研究了两种利用导引头角度信息进行的剩余飞行时间估计算法,通过仿真对两种算法进行了分析。根据仿真结果,算法1对导引头角度噪声过于敏感,估计误差太大。算法2相对于算法1具有良好的性能,通过GHK滤波使估计值稳态误差较小,可以满足精确炸点控制要求。

The missile performance of anti-tactical ballistic missile （ATBM） depends on missile fuze and warhead to a great extent. In order to improve the kill probability, a simple but effective time delay algorithm is very important. The paper does some researches on two tlme-to-go algorithms, which are deduced using angle information provided by the seeker fuze and are analyzed through simulation. The simulation results show that the algorithm 1 is too sensitive to the noise of angle and the estimation error is too big. Algorithm 2 has better performance than algorithm 1, GHK filter can make the steady estimation error very small. It can satisfy the request of accurate burst time control.