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Output feedback control of linear systems with input and output quantization

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3 Author(s)
Coutinho, D. ; Fac. of Eng., Pontiffcia Univ. Catolica do Rio Grande do Sul, Porto Alegre, Brazil ; Minyue Fu ; de Souza, Carlos E.

A considerable amount of research has been done on the use of logarithmic quantizers for networked feedback control systems. However, most results are developed for the case of a single quantizer (either measurement or control signal quantization). In this paper, we investigate the case of simultaneous input and output quantization for SISO linear output feedback systems. Firstly, we show that the problem of quadratic stabilization via quantized feedback can be addressed with no conservativeness by means of the sector bound approach. Secondly, we provide a bound on the maximal admissible sector bound via a scaled H¿ optimization problem.

Published in:

Decision and Control, 2008. CDC 2008. 47th IEEE Conference on

Date of Conference:

9-11 Dec. 2008