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Optimal estimation for networked control systems with intermittent inputs without acknowledgement

Optimal estimation for networked control systems with intermittent inputs without acknowledgement
Optimal estimation for networked control systems with intermittent inputs without acknowledgement
This paper investigates the optimal estimation problem for networked control systems, where the control packets are randomly dropped without acknowledgement to the estimator. Most existing results for this setup are concerned with the design of controller, while the optimal estimation and its performance evaluation have not been fully studied. This paper shows, unlike many other cases such as intermittent observations or TCP-like systems, the system state follows a Gaussian mixture distribution with exponentially increasing terms. The optimal estimation is obtained by Gaussian sum filtering, while the computation is time consuming. By constructing an auxiliary estimator, a fast and stable filtering algorithm is proposed to improve computational efficiency.
networked control systems, optimal estimation, intermittent inputs, packet loss
Lin, Hong
1c7e2576-2249-4c3c-98ab-b0a3436780cf
Su, Hongye
49abac6c-096f-493e-b412-8948bbea3c30
Shu, Zhan
ea5dc18c-d375-4db0-bbcc-dd0229f3a1cb
Wu, Zhengguang
22af5779-f570-4d71-9cfc-c6209356673f
Xu, Yong
bdf3c62d-fa3c-4763-83b8-98066c3415e2
Lin, Hong
1c7e2576-2249-4c3c-98ab-b0a3436780cf
Su, Hongye
49abac6c-096f-493e-b412-8948bbea3c30
Shu, Zhan
ea5dc18c-d375-4db0-bbcc-dd0229f3a1cb
Wu, Zhengguang
22af5779-f570-4d71-9cfc-c6209356673f
Xu, Yong
bdf3c62d-fa3c-4763-83b8-98066c3415e2

Lin, Hong, Su, Hongye, Shu, Zhan, Wu, Zhengguang and Xu, Yong (2014) Optimal estimation for networked control systems with intermittent inputs without acknowledgement. 19th IFAC World Congress, Cape Town, South Africa. 24 - 29 Aug 2014. 6 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper investigates the optimal estimation problem for networked control systems, where the control packets are randomly dropped without acknowledgement to the estimator. Most existing results for this setup are concerned with the design of controller, while the optimal estimation and its performance evaluation have not been fully studied. This paper shows, unlike many other cases such as intermittent observations or TCP-like systems, the system state follows a Gaussian mixture distribution with exponentially increasing terms. The optimal estimation is obtained by Gaussian sum filtering, while the computation is time consuming. By constructing an auxiliary estimator, a fast and stable filtering algorithm is proposed to improve computational efficiency.

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More information

Published date: August 2014
Venue - Dates: 19th IFAC World Congress, Cape Town, South Africa, 2014-08-24 - 2014-08-29
Keywords: networked control systems, optimal estimation, intermittent inputs, packet loss
Organisations: Mechatronics

Identifiers

Local EPrints ID: 381653
URI: http://eprints.soton.ac.uk/id/eprint/381653
PURE UUID: 03bfcb7f-7d05-4832-b900-cb1f1f474abe
ORCID for Zhan Shu: ORCID iD orcid.org/0000-0002-5933-254X

Catalogue record

Date deposited: 07 Oct 2015 10:54
Last modified: 14 Mar 2024 21:18

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Contributors

Author: Hong Lin
Author: Hongye Su
Author: Zhan Shu ORCID iD
Author: Zhengguang Wu
Author: Yong Xu

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