292 search results - page 2 / 59 » Estimation of the noise correlation matrix |
ICASSP
2010
IEEE
13 years 5 months ago
2010
IEEE
One of the key problems in cognitive radio (CR) is the detection of primary activity in order to determine which parts of the spectrum are available for opportunistic access. This...
VTC
2008
IEEE
13 years 11 months ago
2008
IEEE
— The second-order statistics of a time-domain signal are very often used in blind and semi-blind channel estimation. Considering that the received signal in MIMO-OFDM systems mi...
VLSISP
2002
13 years 4 months ago
2002
This paper addresses a method of blind source separation that jointly exploits the nonstationarity and temporal structure of sources. The method needs only multiple time-delayed co...
ESANN
2006
13 years 6 months ago
2006
In this paper, the problem of an optimal transformation of the input space for function approximation problems is addressed. The transformation is defined determining the Mahalanob...
ICASSP
2008
IEEE
13 years 11 months ago
2008
IEEE
A novel blind subspace-based channel estimation technique is developed for direct-sequence code division multiple-access (DS-CDMA) systems operating in unknown wide-sense stationa...