%0 Journal Article %T Application of Bicoherence Analysis in Study of Wave Interactions in Space Plasma %+ Laboratoire de physique et chimie de l'environnement (LPCE) %+ Copernicus Astronomical Center of the Polish Academy of Sciences (CAMK) %A Lagoutte, Dominique %A Lefeuvre, François %A Hanasz, J. %< avec comité de lecture %@ 2169-9380 %J Journal of Geophysical Research Space Physics %I American Geophysical Union/Wiley %V 94 %N A1 %P 435-442 %8 1989 %D 1989 %R 10.1029/JA094iA01p00435 %Z Physics [physics]/Physics [physics]/Space Physics [physics.space-ph] %Z Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]Journal articles %X A spectral analysis at the second order (power spectrum) loses the phase information among the different Fourier components. To retain this information, the bispectrum (third order) and/or the bicoherence (normalized bispectrum) are calculated. Application to simulated data, shows the dependence of the bispectrum to amplitudes of involved waves and of the bicoherence to signal-to-noise ratio. Bicoherence technique is applied in the analysis of harmonics produced by an electronic receiver, as well as in the investigation of phase coherence between a ground-transmitter signal, a natural ELF emission near the proton gyrofrequency, and the sidebands around the carrier. Strong arguments are provided that the sidebands are generated by a parametric interaction between the transmitter signal and the ELF emission. %G English %2 https://insu.hal.science/insu-02880211/document %2 https://insu.hal.science/insu-02880211/file/JA094iA01p00435.pdf %L insu-02880211 %U https://insu.hal.science/insu-02880211 %~ INSU %~ CNRS %~ UNIV-ORLEANS %~ OSUC %~ LPC2E