Title :
The influence of source overlapping on correlation matrix and activity index
Author :
Rok Istenič;Damjan Zazula
Author_Institution :
Faculty of Electrical Engineering and Computer Science, University of Maribor, Slovenia
Abstract :
In this paper, the influence of overlapping of pulse signal sources on their correlation matrix and activity index is studied. The activity index is defined as a Mahalanobis distance of signal observations. Influences of source overlapping on activity index were simulated for a different number of overlapping sources and degrees of their overlapping. The findings lead to an improved model of activity index, which can support a more reliable estimation of the number of active sources in convolutive mixtures of pulse sources.
Keywords :
"Brain modeling","Biomedical signal processing","Data models","Circuits and systems","Computer science","Pulse circuits","Computational modeling","Sensor systems","Speech processing","Signal processing"
Conference_Titel :
Signals, Circuits and Systems (SCS), 2009 3rd International Conference on
Print_ISBN :
978-1-4244-4397-0
DOI :
10.1109/ICSCS.2009.5412607
