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How effective is the extended kalman filter for continuous yeast cultures affected by both inflow and measurement noise?.

DIR@IMTECH: CSIR-Institute of Microbial Technology

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Title How effective is the extended kalman filter for continuous yeast cultures affected by both inflow and measurement noise?.
 
Creator Patnaik, P R
 
Subject QR Microbiology
 
Description The usefulness of the extended Kalman filter (EKF) as
an on-line estimator of process variables is known for
monotonic laboratory-scale fermentations. However,
this has not been tested for oscillating cultures under
non-ideal conditions representative of large bioreactors.
So, in this study an EKF was applied for on-line
filtering of simulated data of an oscillating continuous
Saccharomyces cerevisiae culture with inflow and measurement
noise. For better accuracy, the tuning of the
EKF was updated over successive time slices such that
deviations between the noise-affected and noise-free
profiles were minimized during each interval. As shown
by the concentrations of biomass and ethanol, noise disrupted periodicity in both, but oscillations close to
the noise-free behaviour could be restored substantially
by the EKF, thus suggesting its suitability for
large non-ideal bioreactors with either monotonic or
oscillating cultures.
 
Publisher IISc
 
Date 2004
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://crdd.osdd.net/open/956/1/patnaik2004.3.pdf
Patnaik, P R (2004) How effective is the extended kalman filter for continuous yeast cultures affected by both inflow and measurement noise?. Current Science, 86. pp. 999-1007.
 
Relation http://www.iisc.ernet.in/currsci/apr102004/999.pdf
http://crdd.osdd.net/open/956/