Abstract
Recently, we developed an adaptive distributed observer for a class of uncertain leader systems over undirected connected graphs. This adaptive distributed observer can not only exponentially estimate the leader's state, but also the unknown parameters of the system matrix of the leader. In this paper, we further study the same problem over directed graphs. It is shown that, the same adaptive distributed observer as the one in our previous paper also works for a directed graph if the graph is acyclic and connected. We further show that the unknown output matrix of the leader system can also be estimated exponentially by a distributed dynamic compensator.
| Original language | English |
|---|---|
| Pages (from-to) | 3424-3432 |
| Number of pages | 9 |
| Journal | International Journal of Control |
| Volume | 94 |
| Issue number | 12 |
| Early online date | 18 May 2020 |
| DOIs | |
| Publication status | Published - 2021 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2020 Informa UK Limited, trading as Taylor & Francis Group.
Funding
This work has been supported in part by the Research Grants Council of the Hong Kong Special Administration Region under grant No. 14219516, and in part by Projects of Major International (Regional) Joint Research Program NSFC (Grant no. 61720106011). The preliminary version of this paper was presented in Wang and Huang (Citation2019b).
Keywords
- consensus
- directed acyclic graphs
- Distributed observer
- leader-following
- uncertain leader