基于变结构控制的反鱼雷武器导引律

Anti-torpedo Weapon Guidance Law based on Variable Structure Control

未来战争中,智能鱼雷对水面舰艇的威胁越来越严重。因此,针对鱼雷的硬杀伤武器(ATT)成为国际上研究的热点。根据对ATT武器的导引方式的研究,结合滑模变结构控制理论,推导出一种以航向角为控制律的导引方式。该控制律克服了基于角速率导引方式的缺点,可适用于主动和被动检测,保证了ATT武器在数据率较低且不固定的情况下,仍能够以较高精度命中目标,因而能更好地适应水中导引的特点。当来袭鱼雷存在机动时,利用主动导引方式,也可以获得较好的拦截效果。仿真表明,该导引律鲁棒性强,攻击弹道平滑,对来袭鱼雷有较高的命中精度。

In a future battle,warships are faced with a severe threaten of intelligence torpedo.Therefore,anti-torpedo torpedo（ATT） become a hotspot of the international research.A guidance law based on the sliding mode control theory was proposed for ATT weapon.In this guidance law,the increment of yaw angle was used rather than the angle velocity,which proved to be more suitable for the underwater environment.Simulation results show that sliding mode guidance law had an outstanding performance for the underwater target.Even when the target.is maneuvering,satisfactory effect will be achieved by the use of active sonar.