Performance assessment of the maximum likelihood ensemble filter and the ensemble Kalman filters for nonlinear problems
Performance assessment of the maximum likelihood ensemble filter and the ensemble Kalman filters for nonlinear problems
复制标题
针对非线性问题的最大似然集成滤波器和集成卡尔曼滤波器的性能评估
DOI:
10.1007/s40687-022-00359-7
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发表时间:
2022
影响因子:
1.2
通讯作者:
Gao, Xinfeng
中科院分区:
文献类型:
--
作者:
Wang, Yijun;Zupanski, Milija;Tu, Xuemin;Gao, Xinfeng
This study presents a thorough investigation of the performance comparison of three ensemble data assimilation (DA) methods, including the maximum likelihood ensemble filter (MLEF), the ensemble Kalman filter (EnKF), and the iterative EnKF (IEnKF), with respect to solution accuracy and computational efficiency for nonlinear problems. The convection–diffusion–reaction (CDR) problem is first tested, and then, the chaotic Lorenz 96 model is solved. Both linear and nonlinear observation operators are considered. The study demonstrates that MLEF consistently produces more accurate and efficient solution than the other two methods and provides more information on both states and their uncertainties. The IEnKF and MLEF are used to estimate model parameters and uncertainty in initial conditions using a nonlinear observation operator. The assimilation performance is assessed based on the quality metrics, such as the squared true error, the trace of the error covariance matrix, and the root-mean-square (RMS) error. Based on these DA performance assessments, MLEF demonstrates better convergence and higher accuracy. Results of the CDR problem show significant improvements in the estimate of model parameters and the solution accuracy by MLEF compared to the EnKF family. This study provides evidence supporting the choice of MLEF when solving large nonlinear problems.
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DOI:
10.2514/6.2016-3484
发表时间:
2016
期刊:
Comput. Math. Appl.
影响因子:
--
作者:
Xinfeng Gao;Yijun Wang;Nathaniel Overton;M. Zupanski;Xuemin Tu
通讯作者:
Xuemin Tu
DOI:
10.2514/6.2020-0352
发表时间:
2020
期刊:
AIAA meeting papers on disc
影响因子:
--
作者:
Wang, Y.;Walters, S.;Overton, N.;Guzik, S. M.;Gao, X.
通讯作者:
Gao, X.
影响因子:
8.9
作者:
C. Hurst;Xinfeng Gao
通讯作者:
Xinfeng Gao
DOI:
10.2307/2346308
发表时间:
1973
影响因子:
1.6
作者:
H. Neave
通讯作者:
H. Neave
影响因子:
1.2
作者:
Yijun Wang;S. Guzik;M. Zupanski;Xinfeng Gao
通讯作者:
Xinfeng Gao