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1. 6. 1985.
Estimation and control of sparse dynamic systems
In this report, a ''piece-by-piece'' scheme is proposed for a hierarchical LQG design of estimators and controllers for sparse large-scale systems. Advantage is taken of the special lower-block triangular structure of the system matrices resulting from the application of a graph-theoretic decomposition algorithm. We consider any number of subsystems in the hierarchy, and build the overall system estimator and controller as a union of locally optimal, subsystem estimators and controllers. Due to the hierarchical structure of the decomposed system, the overall closed-loop system is stable and suboptimal. 28 refs., 20 figs.