Distributed consensus-based Kalman filtering considering subspace decomposition

The aim of this paper is to provide a new observer structure able to deal with the distributed estimation of a discrete-time linear system from a network of agents. The main result is an innovative consensus-based structure that decompose the state in the observable and unobservable subspace of the...

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Detalles Bibliográficos
Autores: Rodríguez del Nozal, Álvaro, Orihuela Espina, Diego Luis, Millán Gata, Pablo
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universidad Loyola Andalucía
Repositorio:Brújula
OAI Identifier:oai:repositorio.uloyola.es:20.500.12412/4358
Acceso en línea:https://hdl.handle.net/20.500.12412/4358
Access Level:acceso abierto
Palabra clave:Estimation
Filtering
Distributed control
Sensor networks
Descripción
Sumario:The aim of this paper is to provide a new observer structure able to deal with the distributed estimation of a discrete-time linear system from a network of agents. The main result is an innovative consensus-based structure that decompose the state in the observable and unobservable subspace of the agent using the observability staircase form. The paper proposes a design in which Kalman-like gains are synthetized to minimize the variance of the error on both subspaces. Finally some simulations are shown to compare the proposed estimator with centralized Kalman filter and other distributed schemes found in literture.