Noise level estimation
US10141003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2015 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Jun 8, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/03
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Example embodiments disclosed herein relate to noise level estimation. A method for noise level estimation is disclosed. The method includes, responsive to an increase of a signal level of a noise signal, calculating an impulsive noise probability of the noise signal, the impulsive noise probability indicating a likelihood that the noise signal is an impulsive noise. The method also includes determining a variable smoothing factor for noise level estimation based on the impulsive noise probability, the variable smoothing factor being associated with a previous estimated level of the noise signal. The method further includes smoothing the noise signal with the variable smoothing factor so as to determine a current estimated level of the noise signal. Corresponding system and computer program products are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.