91 search results - page 1 / 19 » Blind noise variance estimation for OFDMA signals |
ICASSP
2009
IEEE
13 years 8 months ago
2009
IEEE
In this paper, we present two new noise variance estimation methods of OFDMA signals transmitted through an unknown multipath fading channel. We focus on blind estimation as it do...
ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
This paper proposes a new speech enhancement algorithm for the suppression of background noise and late reverberation without a priori knowledge. A generalized spectral weighting ...
ICA
2004
Springer
13 years 10 months ago
2004
Springer
The blind separation problem where the sources are not independent, but have variance-dependencies is discussed. Hyv¨arinen and Hurri[1] proposed an algorithm which requires no as...
ISCAS
2006
IEEE
13 years 10 months ago
2006
IEEE
ICASSP
2008
IEEE
13 years 11 months ago
2008
IEEE
We consider estimation of the noise spectral variance from speech signals contaminated by highly nonstationary noise sources. In each time frame, for each frequency bin, the noise...