On Adaptive Estimation of Bacterial Growth in the Competitive Chemostat

Alex Dos Reis De Souza1, Jean-luc Gouze2, Andrey Polyakov3, Denis Efimov4

  • 1Inria Lille Nord Europe
  • 2INRIA
  • 3Inria Lille Nord-Europe
  • 4Inria

Details

15:10 - 15:30 | Wed 4 Sep | Room FH 5 | WeD5.3

Session: Biological and Biomedical Systems

Abstract

In this paper, the problem of state estimation of a bioreactor containing a single substrate and several competing species is studied. This scenario is well-known as a competition model, in which multiple species compete for the same nutrient. The goal is to estimate concentrations of the substrate and all species, considering the concentration of total biomass as measurement. To address such a challenge, the estimation scheme relies in the coupling of two estimation techniques: an asymptotic observer, which takes advantage of the model structure being independent of its kinetics, and a finite-time parameter estimation technique, which also drops the usual requirement of persistence of excitation.