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Adaptive Delay Estimation and Control of Networked Control systems

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2 Author(s)
Li Chunmao ; School of Electrical Engineering, Southwest Jiaotong University, Chengdu, Sichuan, P. R. China, 610031, Email: ; Xiao Jian

An adaptive algorithm is introduced in this paper to estimate random communication time delay in networked control systems (NCS). The algorithm updates an adaptive delay estimate using gradient descent method, and identifies plant parameters by a modified RLS. By using this algorithm, future control sequences are generated to compensate for the communication time delay when control signals are delayed or missed. To illustrate the improvement in control performance using the proposed method, simulation results are presented to show that the method is superior to the standard networked predictive control

Published in:

2006 International Symposium on Communications and Information Technologies

Date of Conference:

Oct. 18 2006-Sept. 20 2006