王建林, 冯絮影, 赵利强, 等. Unscented Transformation Based Robust Kalman Filter and Its Applications in Fermentation Process[J]. 中国化学工程学报(英文版), 2010,18(3):412-418.
WANG Jianlin, FENG Xuying, ZHAO Liqiang, YU Tao. Unscented Transformation Based Robust Kalman Filter and Its Applications in Fermentation Process[J]. , 2010, 18(3): 412-418.
王建林, 冯絮影, 赵利强, 等. Unscented Transformation Based Robust Kalman Filter and Its Applications in Fermentation Process[J]. 中国化学工程学报(英文版), 2010,18(3):412-418.DOI: 10.1016/S1004-9541(10)60239-X.
WANG Jianlin, FENG Xuying, ZHAO Liqiang, YU Tao. Unscented Transformation Based Robust Kalman Filter and Its Applications in Fermentation Process[J]. , 2010, 18(3): 412-418.DOI: 10.1016/S1004-9541(10)60239-X.
Unscented Transformation Based Robust Kalman Filter and Its Applications in Fermentation Process
State estimation is the precondition and foundation of a bioprocess monitoring and optimal control. However
there are many difficulties in dealing with a non-linear system
such as the instability of process
un-modeled dynamics
parameter sensitivity
etc
.This paper discusses the principles and characteristics of three different approaches
extended Kalman filters
strong tracking filters and unscented transformation based Kalman filters.By introducing the unscented transformation method and a sub-optimal fading factor to correct the prediction error covariance
an improved Kalman filter
unscented transformation based robust Kalman filter
is proposed. The performance of the algorithm is compared with the strong tracking filter and unscented transformation based Kalman filter and illustrated in a typical case study for glutathione fermentation process.The results show that the proposed algorithm presents better accuracy and stability on the state estimation in numerical calculations.
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