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Super-Twisting Algorithm-Based Time-Varying Delay Estimation With External Signal
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DOI：10.1109/TIE.2019.2960739.png)
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Abstract
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This article provides an online time-varying delay estimation method by using an external signal sent along with control inputs and output measurements. Since the external signal is isolated from the system, the linearity and delay-identifiability of the system are no longer required. Moreover, the sliding mode method guarantees the finite-time convergence of the delay estimation. By comparing with the standard sliding mode method, the super-twisting algorithm reduces the chattering and provides better performances. Furthermore, the super-twisting algorithm-based delay estimator is implemented on a real remote data transmission system and its performances are illustrated by experimental results.
Keywords:
Computers
Convergence
Delay estimation
Time-varying systems
Remote control
Estimation
Delay estimation
super-twisting
time-varying delay
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