Research On Adaptive Decoupling Control Method Of Spin Guided Projectile

Missile technology is an important branch of development now science weapon,guided projectile spin around the projectile axis during the flight is one of the key research object of the rolling motion of the projectile around the longitudinal axis of the guided projectile motion becomes complicated,the dynamics presented a complicated non-linear characteristic,presents the characteristics of strong coupling,brought the difficulty for flight control design,so this paper according to the characteristics of the flight airspace guided projectile spin large and strong coupling,decoupling control is studied.The mathematical model of the motion of the projectile is established by the method of"coefficient freezing".Through the analysis of the dynamic characteristic of spin guided projectile,the classical PID and Z-N improved PID design of missile overload autopilot,the simulation results of improved Z-N can achieve autopilot more rapid response,with good adaptability and robustness?Study on spin guided projectile linear control system design method,the relative gain to determine the coupling degree,designed by the body double channel control feedback feedforward compensation decoupling compensator,and combined with the design of PID controller decoupling control algorithm.Decoupling control system of guided projectile using PID control and feedforward compensator.The method simplifies the controller and realizes the decoupling of the strong coupling system of the guided projectile.The numerical simulation results show that the proposed control method has the advantages of fast response ability,good command tracking precision and strong robustness under strong coupling and parameter perturbation?The actual project for the attack and sideslip angle can not be measured accurately,many factors can not be ignored in linear system approximation body real system,so the establishment of spin guided projectile nonlinear time-varying model.The neural network disturbance observer is designed by using the principle of the universal approximation to approximate compound jamming system,using the method of design of missile controller,the simulation on the Matlab/Simulink operating environment and combining with theoretical research can be concluded that the control method in the strong coupling nonlinear model with fast response,accurate tracking characteristics,error quickly dropped to 0,very good to avoid the error control for the system,to realize decoupling guidance and strong coupling system can satisfy the system performance requirements of good?...