English

A Graph-Theoretic Approach to the $\mathcal{H}_{\infty}$ Performance of Dynamical Systems on Directed and Undirected Networks

Optimization and Control 2018-04-30 v1

Abstract

We study a graph-theoretic approach to the H\mathcal{H}_{\infty} performance of leader following consensus dynamics on directed and undirected graphs. We first provide graph-theoretic bounds on the system H\mathcal{H}_{\infty} norm of the leader following dynamics and show the tightness of the proposed bounds. Then, we discuss the relation between the system H\mathcal{H}_{\infty} norm for directed and undirected networks for specific classes of graphs, i.e., balanced digraphs and directed trees. Moreover, we investigate the effects of adding directed edges to a directed tree on the resulting system H\mathcal{H}_{\infty} norm. In the end, we apply these theoretical results to a reference velocity tracking problem in a platoon of connected vehicles and discuss the effect of the location of the leading vehicle on the overall H\mathcal{H}_{\infty} performance of the system.

Keywords

Cite

@article{arxiv.1804.10483,
  title  = {A Graph-Theoretic Approach to the $\mathcal{H}_{\infty}$ Performance of Dynamical Systems on Directed and Undirected Networks},
  author = {Mohammad Pirani and Henrik Sandberg and Karl Henrik Johansson},
  journal= {arXiv preprint arXiv:1804.10483},
  year   = {2018}
}