Stability analysis of networked control systems with direct-feedthrough terms: Part II - the linear case

Abstract

We consider networked control systems (NCSs) composed of a linear plant and a linear controller with direct-feedthrough terms, i.e., terms that directly connect the plant's input and output from/to the controller with each other and the controller's input and output from/to the plant with each other. The presence of such direct-feedthrough terms generates non-trivial difficulties in terms of the modeling and the analysis of NCSs. In particular, a novel stability analysis is required to address standard scheduling protocols such as the sampled-data (SD), try-once-discard (TOD), and round-robin (RR) protocols. Hereto, we will take a renewed look at the concept of uniformly globally exponential..