MAP-BASED ESTIMATION OF THE PARAMETERS OF NON-STATIONARY GAUSSIAN PROCESSES FROM NOISY OBSERVATIONS
Non-Stationary Signal Analysis
Přednášející: Alexander Krueger, Autoři: Alexander Krueger, Reinhold Haeb-Umbach, University of Paderborn, Germany
The paper proposes a modification of the standard maximum a posteriori (MAP) method for the estimation of the parameters of a Gaussian process for cases where the process is superposed by additive Gaussian observation errors of known variance. Simulations on artificially generated data demonstrate the superiority of the proposed method. While reducing to the ordinary MAP approach in the absence of observation noise, the improvement becomes the more pronounced the larger the variance of the observation noise. The method is further extended to track the parameters in case of non-stationary Gaussian processes.
Informace o přednášce
| Nahráno: | 2011-05-24 14:45 - 15:05, Club B |
|---|---|
| Přidáno: | 15. 6. 2011 06:50 |
| Počet zhlédnutí: | 33 |
| Rozlišení videa: | 1024x576 px, 512x288 px |
| Délka videa: | 0:20:50 |
| Audio stopa: | MP3 [7.05 MB], 0:20:50 |
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