Distributed resilient filtering of large-scale systems with channel scheduling

Title:

Distributed resilient filtering of large-scale systems with channel scheduling

Creator:

Xu, Lili , Zhang, Sunjie , and Wang, Licheng

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:890f8230-fe28-4c51-8a52-a661b317f3d9
uuid:890f8230-fe28-4c51-8a52-a661b317f3d9
doi:10.14736/kyb-2020-1-0170

Subject:

large-scale systems, sensor networks, distributed filtering, energy constraints, and power systems

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

This paper addresses the distributed resilient filtering for discrete-time large-scale systems (LSSs) with energy constraints, where their information are collected by sensor networks with a same topology structure. As a typical model of information physics systems, LSSs have an inherent merit of modeling wide area power systems, automation processes and so forth. In this paper, two kinds of channels are employed to implement the information transmission in order to extend the service time of sensor nodes powered by energy-limited batteries. Specifically, the one has the merit of high reliability by sacrificing energy cost and the other reduces the energy cost but could result in packet loss. Furthermore, a communication scheduling matrix is introduced to govern the information transmission in these two kind of channels. In this scenario, a novel distributed filter is designed by fusing the compensated neighboring estimation. Then, two matrix-valued functions are derived to obtain the bounds of the covariance matrices of one-step prediction errors and the filtering errors. In what follows, the desired gain matrices are analytically designed to minimize the provided bounds with the help of the gradient-based approach and the mathematical induction. Furthermore, the effect on filtering performance from packet loss is profoundly discussed and it is claimed that the filtering performance becomes better when the probability of packet loss decreases. Finally, a simulation example on wide area power systems is exploited to check the usefulness of the designed distributed filter.

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Coverage:

170-188

Source:

Kybernetika | 2020 Volume:56 | Number:1

Harvested from:

CDK

Metadata only:

false