%0 Journal Article %T About a Partial Differential Equation-Based Interpolator for Signal Envelope Computing: Existence Results and Applications %A Oumar Niang %A Abdoulaye Thioune %A ¨¦ric Del¨¦chelle %A Mary Teuw Niane %J ISRN Signal Processing %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/605035 %U http://dx.doi.org/10.1155/2013/605035