Discrete-time disturbance-accommodating control theory with applications to missile digital control

This paper describes an extension of the theory of (analog) disturbance-accommodating control to include a general class of control problems involving sampled-data and digital controllers. Digital control systems designed by the methods described herein will maintain performance specifications in the face of a wide range of disturbances encountered in practical applications. Design algorithms are derived for stabilization, set-point regulation, and servo-tracking digital control problems. Application of these results to the design of a digital control system for a missile is illustrated by an example.