FN Archimer Export Format
PT J
TI A time-frequency application with the Stokes-Woodward technique
BT 
AF ELFOUHAILY, Tanos
   GUIGNARD, S
   BRANGER, H
   THOMPSON, D
   CHAPRON, Bertrand
   VANDEMARK, D
AS 1:;2:;3:;4:;5:;6:;
FF 1:;2:;3:;4:;5:PDG-DRO-DOPS-LOS;6:;
C1 CNRS, Inst Rech Phenomenes Hors Equilibre, F-13384 Marseille, France.
   Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA.
   IFREMER, Dept Oceanog Spatiale, F-92138 Issy Les Moulineaux, France.
   Univ New Hampshire, OPAL, Durham, NH 03824 USA.
C2 CNRS, FRANCE
   JOHNS HOPKINS UNIV, USA
   IFREMER, FRANCE
   UNIV NEW HAMPSHIRE, USA
SI BREST
SE PDG-DRO-DOPS-LOS
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-int-hors-europe
IF 1.867
TC 0
UR https://archimer.ifremer.fr/doc/2003/publication-744.pdf
LA English
DT Article
DE ;Wind waves;Wave wave interaction;Vertical asymmetry;Time frequency distributions;Nonlinear hydrodynamic processes;Mode coupling;Instantaneous frequency;Instantaneous amplitude;Horizontal asymmetry;AM FM;Amplitude modulation frequency modulation
AB In a recent paper, we have generalized Woodward's theorem and applied it to the case of random signals jointly modulated in amplitude and frequency. This generalization yields a new spectral technique to estimate the amount of energy due to mode coupling without calling for higher order statistics. Two power spectra are detected; the first is related to the independent modes, and the second contains extra energy caused by mode coupling. This detection is now extended from frequency to time-frequency domain. A comparison between a wavelet transform and our time-frequency technique shows good agreement along with new insight into the time occurrence of the nonlinearities or mode coupling. An application to water surface waves is given in this letter as an example.
PY 2003
PD NOV
SO IEEE Transactions on Geoscience and Remote Sensing
SN 0196-2892
PU IEEE
VL 41
IS 11
UT 000186572200001
BP 2670
EP 2673
DI 10.1109/TGRS.2003.817202
ID 744
ER

EF