Application of Bicoherence Analysis in Study of Wave Interactions in Space Plasma - Archive ouverte HAL Access content directly
Journal Articles Journal of Geophysical Research Space Physics Year : 1989

Application of Bicoherence Analysis in Study of Wave Interactions in Space Plasma

(1) , (1) , (2)
1
2

Abstract

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.
Fichier principal
Vignette du fichier
JA094iA01p00435.pdf (565.01 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Loading...

Dates and versions

insu-02880211 , version 1 (24-06-2020)

Identifiers

Cite

Dominique Lagoutte, François Lefeuvre, J. Hanasz. Application of Bicoherence Analysis in Study of Wave Interactions in Space Plasma. Journal of Geophysical Research Space Physics, 1989, 94 (A1), pp.435-442. ⟨10.1029/JA094iA01p00435⟩. ⟨insu-02880211⟩
106 View
219 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More