Abstract
The high noise sensitivity of the Wigner distribution makes smoothing a necessity for producing readable time-frequency images of noise corrupted signals. Since linear smoothing suppresses noise at the expense of considerable smearing of the signal components, we explore two nonlinear denoising techniques based on soft-thresholding in an orthonormal basis representation. Soft-thresholding provides considerable noise reduction without greatly impairing the time-frequency resolution of the denoised distribution.
| Original language | English |
|---|---|
| Title of host publication | Unknown Host Publication Title |
| Editors | Anon |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 452-455 |
| Number of pages | 4 |
| State | Published - Dec 1 1994 |
| Event | Proceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis - Philadelphia, PA, USA Duration: Oct 25 1994 → Oct 28 1994 |
Other
| Other | Proceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis |
|---|---|
| City | Philadelphia, PA, USA |
| Period | 10/25/94 → 10/28/94 |
ASJC Scopus subject areas
- General Engineering