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» Exploiting multipath for blind source separation with sensor...
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TSP
2010
13 years 3 months ago
A low complexity blind estimator of narrowband polynomial phase signals
Consider the problem of estimating the parameters of multiple polynomial phase signals observed by a sensor array. In practice, it is difficult to maintain a precisely calibrated a...
Alon Amar, Amir Leshem, Alle-Jan van der Veen
ICASSP
2011
IEEE
13 years 8 days ago
Separating sources from sequentially acquired mixtures of heart signals
In this paper, we consider the problem of separating a set of independent components when only one movable sensor is available to record the mixtures. We propose to exploit the qu...
Fábio de Lima Hedayioglu, Maria G. Jafari, ...
ICASSP
2010
IEEE
13 years 6 months ago
Energy-based multi-speaker voice activity detection with an ad hoc microphone array
In this paper, we propose an energy-based technique to track the power of multiple simultaneous speakers using an ad hoc microphone array with unknown microphone positions. By con...
Alexander Bertrand, Marc Moonen
ICASSP
2011
IEEE
13 years 8 days ago
Source localization using time difference of arrival within a sparse representation framework
The problem addressed is source localization via time-differenceof-arrival estimation in a multipath channel. Solving this localization problem typically implies cross-correlating...
Ciprian R. Comsa, Alexander M. Haimovich, Stuart C...
IJON
2002
128views more  IJON 2002»
13 years 8 months ago
Extraction of a source from multichannel data using sparse decomposition
It was discovered recently that sparse decomposition by signal dictionaries results in dramatic improvement of the qualities of blind source separation. We exploit sparse decompos...
Michael Zibulevsky, Yehoshua Y. Zeevi