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arXiv · 2604.10596

Distributed Observers with Dynamic Event-Triggered Communication

Yiyang Liu·Xianwei Li·Shaoyuan Li
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Abstract

This paper studies the problem of distributed state estimation of linear time-invariant (LTI) systems under event-triggered communication. For event-triggering mechanisms, the existence of positive minimum inter-event times (MIETs) is an essential property for ensuring practicality. It is widely recognized that dynamic event-triggering mechanisms can effectively reduce redundant communication. However, for distributed observers, it remains unclear whether dynamic event-triggering mechanisms can ensure positive MIETs. This paper proposes a dynamic event-triggered distributed observer. By introducing new comparison functions, it is proven that the dynamic event-triggered distributed observer can guarantee strictly positive MIETs and ensure the exponential convergence of the estimation error. Moreover, most existing works on event-triggered distributed observers only consider node-based event-triggering mechanisms, while both node-based and edge-based dynamic event-triggering mechanisms are constructed in this paper. Numerical examples are provided to illustrate the effectiveness of the proposed results.

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BibTeXRIS

Yiyang Liu, Xianwei Li, Shaoyuan Li. 2026-04-12. Distributed Observers with Dynamic Event-Triggered Communication. https://arxiv.org/abs/2604.10596

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