Event-Triggered State Filter Estimation for Nonlinear Systems with Packet Dropout and Correlated Noise

This paper begins by exploring the challenge of event-triggered state estimations in nonlinear systems, grappling with packet dropout and correlated noise. A communication mechanism is introduced that determines whether to transmit measurement values based on whether event-triggered conditions are v...

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Main Authors: Guorui Cheng, Jingang Liu, Shenmin Song
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/24/3/769
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author Guorui Cheng
Jingang Liu
Shenmin Song
author_facet Guorui Cheng
Jingang Liu
Shenmin Song
author_sort Guorui Cheng
collection DOAJ
description This paper begins by exploring the challenge of event-triggered state estimations in nonlinear systems, grappling with packet dropout and correlated noise. A communication mechanism is introduced that determines whether to transmit measurement values based on whether event-triggered conditions are violated, thereby minimizing redundant communication data. In designing the filter, noise decorrelation is initially conducted, followed by the integration of the event-triggered mechanism and the unreliable network transmission system for state estimator development. Subsequently, by combining the three-degree spherical–radial cubature rule, the numerical implementation steps of the proposed state estimation framework are outlined. The performance estimation analysis highlights that by adjusting the event-triggered threshold appropriately, the estimation performance and transmission rate can be effectively balanced. It is established that when there is a lower bound on the packet dropout rate, the covariance matrix of the state estimation error remains bounded, and the stochastic stability of the state estimation error is also confirmed. Ultimately, the algorithm and conclusions that are proposed in this paper are validated through a simulation example of a target tracking system.
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spelling doaj.art-6ea3437d4a984cad9aafa668cf06518b2024-02-09T15:21:47ZengMDPI AGSensors1424-82202024-01-0124376910.3390/s24030769Event-Triggered State Filter Estimation for Nonlinear Systems with Packet Dropout and Correlated NoiseGuorui Cheng0Jingang Liu1Shenmin Song2Center for Control Theory and Guidance Technology, Harbin Institute of Technology, Harbin 150001, ChinaCenter for Control Theory and Guidance Technology, Harbin Institute of Technology, Harbin 150001, ChinaCenter for Control Theory and Guidance Technology, Harbin Institute of Technology, Harbin 150001, ChinaThis paper begins by exploring the challenge of event-triggered state estimations in nonlinear systems, grappling with packet dropout and correlated noise. A communication mechanism is introduced that determines whether to transmit measurement values based on whether event-triggered conditions are violated, thereby minimizing redundant communication data. In designing the filter, noise decorrelation is initially conducted, followed by the integration of the event-triggered mechanism and the unreliable network transmission system for state estimator development. Subsequently, by combining the three-degree spherical–radial cubature rule, the numerical implementation steps of the proposed state estimation framework are outlined. The performance estimation analysis highlights that by adjusting the event-triggered threshold appropriately, the estimation performance and transmission rate can be effectively balanced. It is established that when there is a lower bound on the packet dropout rate, the covariance matrix of the state estimation error remains bounded, and the stochastic stability of the state estimation error is also confirmed. Ultimately, the algorithm and conclusions that are proposed in this paper are validated through a simulation example of a target tracking system.https://www.mdpi.com/1424-8220/24/3/769correlated noisecubature Kalman filterevent-triggered mechanismnonlinear systempacket dropoutperformance analysis
spellingShingle Guorui Cheng
Jingang Liu
Shenmin Song
Event-Triggered State Filter Estimation for Nonlinear Systems with Packet Dropout and Correlated Noise
Sensors
correlated noise
cubature Kalman filter
event-triggered mechanism
nonlinear system
packet dropout
performance analysis
title Event-Triggered State Filter Estimation for Nonlinear Systems with Packet Dropout and Correlated Noise
title_full Event-Triggered State Filter Estimation for Nonlinear Systems with Packet Dropout and Correlated Noise
title_fullStr Event-Triggered State Filter Estimation for Nonlinear Systems with Packet Dropout and Correlated Noise
title_full_unstemmed Event-Triggered State Filter Estimation for Nonlinear Systems with Packet Dropout and Correlated Noise
title_short Event-Triggered State Filter Estimation for Nonlinear Systems with Packet Dropout and Correlated Noise
title_sort event triggered state filter estimation for nonlinear systems with packet dropout and correlated noise
topic correlated noise
cubature Kalman filter
event-triggered mechanism
nonlinear system
packet dropout
performance analysis
url https://www.mdpi.com/1424-8220/24/3/769
work_keys_str_mv AT guoruicheng eventtriggeredstatefilterestimationfornonlinearsystemswithpacketdropoutandcorrelatednoise
AT jingangliu eventtriggeredstatefilterestimationfornonlinearsystemswithpacketdropoutandcorrelatednoise
AT shenminsong eventtriggeredstatefilterestimationfornonlinearsystemswithpacketdropoutandcorrelatednoise