Estimation in multisensor networked systems with scarce measurements and time varying delays


Abstract:

In this paper, the problem of estimating signals from a dynamic system at regular periods from scarce, delayed and possibly time disordered measurements acquired through a network is addressed. A model based predictor that takes into account the delayed and irregularly gathered measurements from different devices is used. Robustness of the predictor to the time-delays and scarce data availability as well as disturbance and noise attenuation is dealt with via H∞ performance optimization. The result is a time variant estimator gain that depends on the measurement characteristics, but belonging to an offline precalculated finite set, and hence, the online needed computer resources are low. An alternative to reduce the number of gains to be stored has been proposed, based on defining the gain as a function of the sampling parameters. The idea allows reaching a compromise between online computer cost and performance. © 2012 Elsevier B.V. All rights reserved.

Año de publicación:

2012

Keywords:

  • Communication constraint
  • Scarce measurements
  • Time-varying delay
  • Packet dropout
  • Unconventional sampling
  • Sensor fusion
  • Networked control systems

Fuente:

scopusscopus

Tipo de documento:

Article

Estado:

Acceso restringido

Áreas de conocimiento:

  • Sistema de control
  • Red informática

Áreas temáticas de Dewey:

  • Ciencias de la computación
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  • ODS 9: Industria, innovación e infraestructura
  • ODS 11: Ciudades y comunidades sostenibles
  • ODS 17: Alianzas para lograr los objetivos
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