Research On Tracking Control Algorithm Of Gliding Extended Range Guided Projectile

Gliding extended range guided projectiles are a new type of artillery ammunition that is being developed in our country,which has a significant range extension effect and can achieve long.range accurate strikes.It is now reckoned as the most promising ultra.remote ammunition from some aspects,such as the extended.range rate,state of technology,cost effective and so on.This paper studies the outer ballistic characteristics and tracking control law of the glide extended.range guided projectile,and designs an efficient extended.range design and guidance control system.The structural characteristics of the glide extended range guided projectile are summarized.The dynamic model of the guided projectile’s glide extended range and accuracy control process is established to establish its dynamic model.The maximum lift-to-drag ratio gliding strategy and the maximum gliding distance are used to target the gliding.The ballistic parameters of the control section are calculated and analyzed.The effects of muzzle kinetic energy(muzzle velocity),rocket engine parameters,firing angle,glide control point time,and glide start and control angle on the trajectories of the uncontrolled and glide sections were analyzed.The trajectory of the glide extended range guided projectile project was designed to meet the requirements of certain technical indicators by selecting parameters that are easy for engineering practice.The control system of the glide extended range guided projectile was designed.The projectile trajectory tracking control was used on the middle trajectory and the improved proportional guidance control algorithm was used at the end of the trajectory.The damping circuit(bomb angular velocity feedback loop)was added to the projectile trajectory tracking control.Increase the elastic body damping,and obtain satisfactory control characteristics by adjusting the control parameters.The simulation analysis of the ballistic error was carried out through the simulated gunshot test of the Monte Carlo method.The launch conditions(initial disturbances,etc.),aerodynamic parameters,initial speed,engine thrust,and control system errors were considered,and the trajectory tracking and control under different disturbances were performed.The simulation verifies the reliability of the control system designed in this paper.The work in this paper provides a theoretical and technical basis for the trajectory design and control system development of the glide extended range missile arrow scheme.