State estimation for linear discrete-time systems using quantized measurements

Title: State estimation for linear discrete-time systems using quantized measurements
Creator: Fu, Minyue; de Souza, Carlos E.
Relation: Automatica Vol. 45, Issue 12, p. 2937-2945
Publisher Link: http://dx.doi.org/10.1016/j.automatica.2009.09.033
Publisher: Elsevier
Resource Type: journal article
Date: 2009
Description: In this paper, we consider the problem of state estimation for linear discrete-time dynamic systems using quantized measurements. This problem arises when state estimation needs to be done using information transmitted over a digital communication channel. We investigate how to design the quantizer and the estimator jointly. We consider the use of a logarithmic quantizer, which is motivated by the fact that the resulting quantization error acts as a multiplicative noise, an important feature in many applications. Both static and dynamic quantization schemes are studied. The results in the paper allow us to understand the tradeoff between performance degradation due to quantization and quantization density (in the infinite-level quantization case) or number of quantization levels (in the finite-level quantization case).
Subject: quantized estimation; state estimation; discrete-time systems; networked control
Identifier: http://hdl.handle.net/1959.13/924942
Identifier: uon:7085
Identifier: ISSN:0005-1098
Language: eng
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