Design Of Correction Mechanism For Flight Control Components And Research Of Trajectory Control Algorithm

The trajectory correction projectile as a new precision strike ammunition, and has a simple structure, low cost and nigh hit accuracy. The correction technology of one dimensional trajectory projectile is the preliminary stage in the trajectory correction technology. Its advances in technology can significantly improve the performance and operational effectiveness.This paper presents a new design of correction mechanism and control algorithm, based on some type of grenade, which are both widely used. Main works include the following 4 aspects:(1) According to the structure of a grenade, it designs a correction mechanism of flight control components. The design include correction mechanism design, actuator component design and control component design. It uses the area of projectile tail effectively. It places control unit reasonable. It reduces the impact of projectile stability.(2)The circuit design of correction unit controller. According to different circuit design, brief overview the advantages of the circuit, and the circuit can meet the requirements of the system design. This paper designs ephemeris setter. It mounts on the projectile with the information of lunch site and objective.(3) According to the total model of one-dimensional external ballistic, this paper proposes control algorithm of one-dimension based on GPS. It is used to solve damper opening time of different situations and different angels. It depends the solver time and the accuracy of open time to validate the feasibility of algorithm.(4) For the solution operator time of trajectory solver algorithms is long, it presents a segment solver algorithm of one-dimensional trajectory projectile. It verifies the superiority of algorithms by trajectory simulation.The results of MATLAB simulation verify the feasibility of the proposed design of correction mechanism and control algorithm.