Control strategy with adaptive quantizer’s parameters under digital communication channels

A stabilizing controller designed without considering quantization may not be effectively implemented for the systems with quantized information due to quantization errors. Hence, an interesting issue is how to design the quantizer such that the desired system performance can be still attained by th...

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Vydané v:Automatica (Oxford) Ročník 50; číslo 10; s. 2665 - 2671
Hlavní autori: Niu, Yugang, Ho, Daniel W.C.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Kidlington Elsevier Ltd 01.10.2014
Elsevier
Predmet:
Adaptative systems
Adjusting rule
Applied sciences
Computer science; control theory; systems
Control system synthesis
Control systems
Control theory. Systems
Digital communication channel
Exact sciences and technology
Information, signal and communications theory
Quantization
Sampling, quantization
Signal and communications theory
Telecommunications and information theory
Quantization
Control systems
Digital communication channel
Adjusting rule
Performance evaluation
H infinite optimization
Disturbance rejection
On line
Quantization error
Information system
Transmission channel
Control synthesis
Updating
Decoding circuit
Adaptive control
Signal quantization
Quantized signal
Digital communication
Quantifier
State dependence
ISSN:0005-1098, 1873-2836
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Popis
Shrnutí:A stabilizing controller designed without considering quantization may not be effectively implemented for the systems with quantized information due to quantization errors. Hence, an interesting issue is how to design the quantizer such that the desired system performance can be still attained by the above controller. In this work, a new control strategy with on-line updating the quantizer’s parameter is proposed. This scheme may ensure the controlled system to attain the same dynamic performance, H∞ disturbance attenuation level, as the one without signal quantization. A practical adjusting rule on quantizer’s parameter is proposed such that the state-dependent parameter is available on both sides of encoder/decoder. Finally, some numerical examples have been provided to illustrate the present control scheme.
ISSN:0005-1098
1873-2836
DOI:10.1016/j.automatica.2014.08.032