Abstract
We consider the problem of jointly estimating the states and sparse inputs of a linear dynamical system using noisy low-dimensional observations. We exploit the underlying sparsity in the inputs using fictitious sparsity-promoting Gaussian priors with unknown variances (as hyperparameters). We develop two Bayesian learning-based techniques to estimate states and inputs: sparse Bayesian learning and variational Bayesian inference. Through numerical simulations, we illustrate that our algorithms outperform the conventional Kalman filtering based algorithm and other state-of-the-art sparsity-driven algorithms, especially in the low-dimensional measurement regime.
| Original language | English |
|---|---|
| Title of host publication | 2024 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2024 - Proceedings |
| Publisher | IEEE |
| Pages | 13431-13435 |
| Number of pages | 5 |
| ISBN (Electronic) | 9798350344851 |
| DOIs | |
| Publication status | Published - 2024 |
| Event | 49th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2024 - Seoul, Korea, Republic of Duration: 14 Apr 2024 → 19 Apr 2024 |
Publication series
| Name | ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings |
|---|---|
| ISSN (Print) | 1520-6149 |
Conference
| Conference | 49th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2024 |
|---|---|
| Country/Territory | Korea, Republic of |
| City | Seoul |
| Period | 14/04/24 → 19/04/24 |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Keywords
- Gaussian prior
- Kalman smoothing
- robust filtering
- sparse Bayesian learning
- variational Bayesian inference
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