3 papers
eess.SP2017
Analytic signal in many dimensions
Mikhail Tsitsvero, Pierre Borgnat, Paulo Gonçalves
In this work we extend analytic signal theory to the multidimensional case when oscillations are observed in the orthogonal directions. First it is shown how to obtain separate…
cs.IT2015
On the Degrees of Freedom of Signals on Graphs
Mikhail Tsitsvero, Sergio Barbarossa
Continuous-time signals are well known for not being perfectly localized in both time and frequency domains. Conversely, a signal defined over the vertices of a graph can be perfec…
cs.IT2015
Uncertainty Principle and Sampling of Signals Defined on Graphs
Mikhail Tsitsvero, Sergio Barbarossa, Paolo Di Lorenzo
In many applications, from sensor to social networks, gene regulatory networks or big data, observations can be represented as a signal defined over the vertices of a graph. Buildi…