Minimum Phase Behavior of High-Speed Tail-Controlled Projectiles

Author(s):

Tristan D Griffith, John Zelina, Joshua T Bryson, and Benjamin C Gruenwald

Abstract:

Tail-controlled projectiles are known to have unstable transmission zeros. Adaptive control architectures and many other control strategies require the transmission zeros be stable to produce stability proofs. Accordingly, many control techniques may not be immediately applied to tail-controlled projectiles. This work presents an overview of the theoretical considerations for the stabilization of transmission zeros by leaking or blending some of the other plant states into the system output. A variety of solutions are presented, but it is ultimately shown that this approach is not worth further exploration because it requires feedback of many more plant states for successful implementation that may not be available for estimation.