Design of a Robust Controller for an Unstable Nonminimum Phase Guided Missile.

摘要

H2 and H at infinity design techniques are applied to a state space representation of a surface to air missile system with unstable nonminimum phase airframe response characteristics. A method for converting the tracking and command following problems to the standard problem is given. Artificial frequency-dependent filtering of external inputs is required for proper closed loop system performance, and a method for deriving the filters is developed. Areas requiring further study are identified. Keywords: Robust control; Control theory; Multivariable control; Theses. (jhd)