哈尔滨工业大学（深圳）学术讲座

Speaker：Weixing Zheng (西悉尼大学教授，Fellow IFAC/IEEE)

Title:  Distributed State Estimation Subject to Intermittent Attacks

Date：  2025-11-22（Sat. 周六）     Time：10:30-11:30

Venue:  H611

摘要：

Intermittent attacks can launch multiple attacks in a short time, attack quickly, stop quickly, and appear uncertainly, which makes it difficult to identify and detect such attacks. This talk considers the distributed state estimation problem for continuous-time LTI systems where the communication channels are affected by stochastic intermittent attacks. We focus on a random intermittent injection attack that leads to abrupt and random changes of the state information transmitted by the neighbors. First, we model this attack as a stochastic impulsive sequential attack. Then we design a distributed observer under stochastic impulsive sequential attacks. The distributed observer consists of local observers, with each local observer being composed of a detectable part and an undetectable part. The state value of the undetectable part needs to be consistent through mutual communications between the agent and its neighbors. We present sufficient conditions for the existence of the distributed observer in the sense of mean square and almost sure. We also validate the efficiency of the designed distributed observer via computer simulations.

报告人简介:

Wei Xing Zheng received the B.Sc. degree in Applied Mathematics in 1982, the M.Sc. degree in Control Theory and Applications in 1984, and the Ph.D. degree in Control Theory and Applications in 1989, all from Southeast University, Nanjing, China. He is currently a University Distinguished Professor with Western Sydney University, Sydney, Australia. Over the years he has also held various faculty/research/visiting positions at several universities in China, UK, Australia, Germany, USA, etc. He previously served as an Associate Editor for IEEE Transactions on Automatic Control and IEEE Transactions on Control of Network Systems. He is currently an Associate Editor for Automatica and a Senior Editor for IEEE Transactions on Control of Network Systems. He has been an IEEE Distinguished Lecturer of IEEE Control Systems Society. He is a Fellow of IEEE and a Fellow of IFAC.