Abstract
We study the asymptotic behavior of wavelet coefficients of random processes with long memory. These processes may be stationary or not and are obtained as the output of non-linear filter with Gaussian input. The wavelet coefficients that appear in the limit are random, typically non-Gaussian and belong to a Wiener chaos. They can be interpreted as wavelet coefficients of a generalized self-similar process.
| Original language | English |
|---|---|
| Pages (from-to) | 223-241 |
| Number of pages | 19 |
| Journal | Applied and Computational Harmonic Analysis |
| Volume | 32 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Mar 2012 |
| Externally published | Yes |
Keywords
- Hermite processes
- Long-range dependence
- Self-similar processes
- Wavelet coefficients
- Wiener chaos