AHMED, Hafiz; USHIROBIRA, Rosane; EFIMOV, Denis; TRAN, Damien; SOW, Mohamedou; CIRET, Pierre; MASSABUAU, Jean-Charles

doi:10.1109/TSMC.2016.2523923

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AHMED, Hafiz
Non-Asymptotic estimation for online systems [NON-A]

USHIROBIRA, Rosane
Non-Asymptotic estimation for online systems [NON-A]

EFIMOV, Denis
Non-Asymptotic estimation for online systems [NON-A]

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Ce document a été publié dans

IEEE transactions on systems, man, and cybernetics. 2017-06, vol. 47, n° 6

Résumé en anglais

The measurements of valve activity in a population of bivalves under natural environmental conditions (16 oysters in the Bay of Arcachon, France) are used for a physiological model identification. A nonlinear auto-regressive exogenous (NARX) model is designed and tested. The method to design the model has two parts. 1) Structure of the model: The model takes into account the influence of environmental conditions using measurements of the sunlight intensity, the moonlight, tide levels, precipitation and water salinity levels. A possible influence of the internal circadian/circatidal clocks is also analyzed. 2) Least square calculation of the model parameters. Through this study, it is demonstrated that the developed dynamical model of the oyster valve movement can be used for estimating normal physiological rhythms of permanently immersed oysters and can be considered for detecting perturbations of these rhythms due to changes in the water quality, i.e. for ecological monitoring.< Réduire

Mots clés en anglais

System Identification

Ecological Monitoring

Oyster Population

Dynamic Model

Circadian Rhythm Modeling

Bioindicator