Distributed Continuous-Discrete State Observer With Discrete Output Measurements and Communication

• 成果类型: Article
• 署名作者: Cheng, Yi; Zhang, Baoyong; Xu, Shengyuan
• 署名单位: Nanjing University of Science & Technology
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2025.3601491
• 发表日期: 2026
• 关键词: systems

摘要

This article addresses a distributed state estimation problem for a continuous-time linear time-invariant system over the sensor and communication networks utilizing the discrete local output measurements and the intermittent communication. A distributed continuous-discrete state observer is developed to continuously generate the estimates. At each sampling moment, the estimate is updated based on the state update rule by using the periodic samples of the local output measurement and the neighboring estimates, which can be received aperiodically via the communication networks. This strategy enables an intermittent communication mechanism that effectively addresses the interval time-varying communication delays within the networks. Furthermore, we demonstrate that the estimation errors of the distributed state observer converge exponentially to zero. An algorithm is proposed for implementing the distributed state observer. Finally, we present a numerical example to illustrate the theoretical results.