Work

A Delta Operator State Estimation Algorithm for Discrete-Time Systems With State Time-Delay

Year: 2024

Type: article

Abstract: This letter presents a state estimation algorithm for linear discrete-time systems with state-delay. In order to overcome the difficulty that the traditional Kalman filter cannot estimate the states of the systems with state-delay, a state estimation strategy is developed by combining the auxiliary model with the delta operator. Then, by constructing and minimizing the covariance matrix of the state reconstruction errors, a delta operator state estimation algorithm is derived and it can fulfill effective state estimation for the linear discrete-time system with state-delay. Moreover, the convergence proof is provided by means of stochastic stability theory. Finally, the experimental results demonstrate that the developed state estimation method is effective.

Source: IEEE Signal Processing Letters

DOI: 10.1109/lsp.2024.3519897

Authors: Ling Xu, Xiao Zhang, Feng Ding, Quanmin Zhu

Institutions: Changzhou University, Jiangnan University, University of the West of England

Language: English

Topic: Stability and Control of Uncertain Systems

Subfield: Control and Systems Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funder: National Natural Science Foundation of China

Award: G5660952937