Wavelet transforms are recent mathematical techniques, based on group theory and square
integrable representations, which allows one to unfold a signal, or a field, into both space …

The two-dimensional continuous wavelet transform (CWT) is characterized by a rotation
parameter, in addition to the usual translations and dilations. This enables it to detect edges …

Long term memory has frequently been observed in physical time series. Statistical theory
for long-memory stochastic processes is radically different from the standard time series …

Abstract The two‐dimensional (2‐D) continuous wavelet transform (CWT) is characterized
by a rotation parameter, in addition to the usual translations and dilations. This enables is to …

Due to the difficulties in measuring supersonic density field, the multiresolution analysis of
supersonic mixing layer based on experimental images is still a formidable challenge. By …

Dans cet article, j'ai choisi d'exposer un point de vue personnel concernant l'état actuel de
notre compréhension de la turbulence développée. La turbulence développée est l'étude …

Piton de la Fournaise volcano, La Réunion Island, is a basaltic shield volcano, which
underwent an intense cycle of eruptive activity between 1998 and 2008. Self-potential and …

The density field around a vortex generator (VG) in supersonic flow is studied with a
nanoparticle-based planar laser scattering (NPLS) method. Based on the calibration, ie, the …

L'objet de cette thèse se rapporte principalement au problème de la transmission d'ondes
spériques à travers une interface plane séparant deux milieux fluides, la source se trouvant …

Résumé Time-frequency methods, such smoothed Wigner-Ville transforms, have already
been used in studies of the possibility of characterizing scatterers of simple geometric …