Guidance and Control Design for a Class of Spin-Stabilized Projectiles with a Two-Dimensional Trajectory Correction Fuze

Abstract

A guidance and control strategy for a class of 2D trajectory correction fuze with fixed canards is developed in this paper. Firstly, correction control mechanism is researched through studying the deviation motion, the key point of which is the dynamic equilibrium angle. Phase lag of swerve response is the dominating factor for correction control, and formula is deduced with the Mach number as argument. Secondly, impact point deviation prediction based on perturbation theory is proposed, and the numerical solution and application method are introduced. Finally, guidance and control strategy is developed, and simulations to validate the strategy are conducted.

Simulation‐Based Early Prediction of Rocket, Artillery, and Mortar Trajectories and Real‐Time Optimization for Counter‐RAM Systems

“…Wang et al [7] established a guidance and control design for a class of spin-stabilized projectiles with a twodimensional trajectory correction fuze. Lee and Jun [8] developed guidance algorithm for projectile with rotating canards via predictor-corrector approach.…”

Optimization of Trajectory Correction Scheme for Guided Mortar Projectiles

“…A predictive guidance law and a trajectory tracking guidance law are introduced for the guidance of the guided mortar projectiles, and the optimization of trajectory correction scheme is done for the two guidance laws [18,19].…”

Real‐time estimation of roll angle for trajectory correction projectile using radial magnetometers

“…To achieve trajectory correction, only if the roll angle of the projectile is obtained in real time, the action angle of the canard or pulse thrust engine on the projectile can be determined, then the actuator can be driven to adjust the attitude and position of the projectile [2, 3]. Obviously, the real‐time acquisition of roll angle is the key to trajectory correction.…”