制导炮弹制导控制一体化滑模设计方法

Integrated sliding mode design methods for guidance and control of guided projectiles

鉴于制导炮弹高动态、大扰动等特殊发射和飞行环境,传统制导系统和控制系统单独设计会产生较大的误差,影响系统的稳定性,弹丸命中目标精度较差。采用制导控制系统一体化设计方法,基于滑模变结构理论,设计了制导炮弹导控一体控制律。通过数值仿真验证了所设计控制律的正确性、精确性和稳定性。数值仿真表明:采用滑模控制理论设计的导控一体控制律在较大摄动的情况下,仍然具有较高的控制精度;蒙特卡洛仿真表明该方法能够满足工程需要。

According to the characteristics of special launch and flight environment such as high dynamic and large disturbance of guided projectiles,individual design of the traditional guidance system and control system will produce a large error,affect the stability of the system,and cause a poor projectile target hitting accuracy.This paper designs the integrated guidance and control law of guided projectiles based on the sliding mode variable structure theory.The correctness,accuracy and stability of the designed control law are verified by numerical simulation.The numerical simulation shows that the integrated guidance and control law designed by the sliding mode control theory still has a high control accuracy in the case of large perturbation.At the same time,Monte Carlo simulation shows that this method can meet engineering needs.