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» Estimation of the noise correlation matrix
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ICASSP
2011
IEEE
12 years 8 months ago
Estimation of the noise correlation matrix
To harvest the potential of multi-channel noise reduction methods, it is crucial to have an accurate estimate of the noise correlation matrix. Existing algorithms either assume sp...
Richard C. Hendriks, Timo Gerkmann
ICASSP
2011
IEEE
12 years 8 months ago
Robust hyperspectral signal unmixing in the presence of correlated noise
Hyperspectral imaging analysis aims at the estimation of the number of constituent substances, known as endmembers, their spectral signatures as well as their abundance fractions ...
Masoud Farzam, Soosan Beheshti
TSP
2008
90views more  TSP 2008»
13 years 4 months ago
Generalized Correlation Decomposition-Based Blind Channel Estimation in DS-CDMA Systems With Unknown Wide-Sense Stationary Noise
A new blind subspace-based channel estimation technique is proposed for direct-sequence code-division multiple access (DS-CDMA) systems operating in the presence of unknown wide-se...
Keyvan Zarifi, Alex B. Gershman
INTERSPEECH
2010
12 years 11 months ago
Multichannel noise reduction using low order RTF estimate
The relative transfer function generalized sidelobe canceler (RTF-GSC) is a popular method for implementing multichannel speech enhancement. However, an accurate estimation of cha...
Subhojit Chakladar, Nam Soo Kim, Yu Gwang Jin, Tae...
WCNC
2008
IEEE
13 years 11 months ago
Subspace Blind MIMO-OFDM Channel Estimation with Short Averaging Periods: Performance Analysis
—Among all blind channel estimation problems, subspace-based algorithms are attractive due to its fastconverging nature. It primarily exploits the orthogonality structure of the ...
Chao-Cheng Tu, Benoît Champagne