Abstract
In this paper, a joint state and parameter estimation problem of Duffing oscillator is explored using Bayesian filters, where the parameter to be identified is considered as an additional state variable. From a variety of Bayesian filters, the unscented Kalman filter (UKF), cubature Kalman filter (CKF) and Gauss-Hermite filter (GHF) are chosen for solving this problem. The performance of these filters are compared in terms of the root mean square error (RMSE) calculated over a specified number of Monte-Carlo runs. From simulation results, it is found that the accuracy of CKF and GHF are almost same while the computational time for GHF is almost three times higher.
| Original language | English |
|---|---|
| Pages (from-to) | 425-430 |
| Number of pages | 6 |
| Journal | 5th IFAC Conference on Advances in Control and Optimization of Dynamical Systems ACODS 2018 |
| Volume | 51 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Jan 2018 |
| Externally published | Yes |
Keywords
- Duffing oscillator
- Higher order Gauss-Laguerre quadrature rule
- Nonlinear filtering
- Third-degree spherical cubature rule
- multidimensional Gauss-Hermite quadrature rule
ASJC Scopus subject areas
- Control and Systems Engineering