New Frontiers in Control

Adaptive controllers and manufacturing systems were among the major themes in the control work of the 1980s.

The Robustness of Adaptive Controllers
CSL work led to an understanding of the mechanisms that can cause an adaptive control system to become unstable. It also led to mechanisms that make adaptive controllers robust.

Self-Tuning Adaptive Controllers
Proof was provided for the convergence of self-tuning adaptive controllers. Convergence occurs when such a controller is tuned to the optimum point.

Manufacturing Systems
CSL pioneered a modern, dynamical, systems approach to the analysis and scheduling of manufacturing systems. Scheduling algorithms reduced the length of a silicon wafer's production cycle by 15 percent.

Queuing Networks
New methods for analyzing the performance of queuing networks - systems in which jobs line up - triggered resurgence in the entire field.