A condition for better estimation using asynchronous sampling than synchronous sampling

Shogo Arai; Yasushi Iwatani; Koichi Hashimoto

A condition for better estimation using asynchronous sampling than synchronous sampling

Shogo Arai, Yasushi Iwatani, Koichi Hashimoto

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper investigates state estimation performance for sensor systems with synchronous sampling and asynchronous sampling. It is assumed that system dynamics are described by a class of scalar discrete-time linear systems and a Kalman filter is implemented. The sensors in a sensor system with synchronous sampling are synchronized by a synchronizing signal, and all the sensors work at the same time. Sampling rates of a sensor system with asynchronous samplign are determined stochastically and not constants. It is demonstrated that synchronous sampling is not always better than asynchronous sampling. In particular, this paper gives a sufficient condition, in terms of system parameters, for the estimation performance of systems with asynchronous sampling to be better than synchronous sampling.

Original language	English
Title of host publication	2009 European Control Conference, ECC 2009
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	3719-3724
Number of pages	6
ISBN (Electronic)	9783952417393
Publication status	Published - 2014 Mar 26
Event	2009 10th European Control Conference, ECC 2009 - Budapest, Hungary Duration: 2009 Aug 23 → 2009 Aug 26

Publication series

Name	2009 European Control Conference, ECC 2009

Other

Other	2009 10th European Control Conference, ECC 2009
Country/Territory	Hungary
City	Budapest
Period	09/8/23 → 09/8/26

ASJC Scopus subject areas

Control and Systems Engineering

Cite this

A condition for better estimation using asynchronous sampling than synchronous sampling. / Arai, Shogo; Iwatani, Yasushi; Hashimoto, Koichi.

2009 European Control Conference, ECC 2009. Institute of Electrical and Electronics Engineers Inc., 2014. p. 3719-3724 7074978 (2009 European Control Conference, ECC 2009).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Arai, S, Iwatani, Y & Hashimoto, K 2014, A condition for better estimation using asynchronous sampling than synchronous sampling. in 2009 European Control Conference, ECC 2009., 7074978, 2009 European Control Conference, ECC 2009, Institute of Electrical and Electronics Engineers Inc., pp. 3719-3724, 2009 10th European Control Conference, ECC 2009, Budapest, Hungary, 09/8/23.

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AB - This paper investigates state estimation performance for sensor systems with synchronous sampling and asynchronous sampling. It is assumed that system dynamics are described by a class of scalar discrete-time linear systems and a Kalman filter is implemented. The sensors in a sensor system with synchronous sampling are synchronized by a synchronizing signal, and all the sensors work at the same time. Sampling rates of a sensor system with asynchronous samplign are determined stochastically and not constants. It is demonstrated that synchronous sampling is not always better than asynchronous sampling. In particular, this paper gives a sufficient condition, in terms of system parameters, for the estimation performance of systems with asynchronous sampling to be better than synchronous sampling.

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M3 - Conference contribution

AN - SCOPUS:84955206644

T3 - 2009 European Control Conference, ECC 2009

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BT - 2009 European Control Conference, ECC 2009

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2009 10th European Control Conference, ECC 2009

Y2 - 23 August 2009 through 26 August 2009

ER -

A condition for better estimation using asynchronous sampling than synchronous sampling

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