New Multi-Carrier Demodulation Method Applied to Gearbox Vibration Analysis

Elisa Hubert; Axel Barrau; Mohamed El Badaoui

ICASSP 2018accepted0 citations

New Multi-Carrier Demodulation Method Applied to Gearbox Vibration Analysis

Elisa Hubert, Axel Barrau, Mohamed El Badaoui

Abstract

Demodulation consists in factorizing a signal as a product of a high-frequency component (carrier) and a low-frequency component (modulation). Most of the classical demodulation methods developed for telecommunications cannot be transposed directly on mechanical problems. In gearbox vibration monitoring the assumption that the carrier energy is concentrated on a single harmonic is not verified. This paper shows the limits of this assumption and proposes a new approach based on optimization, more adapted to line spectrum signals.

BibTeX

@inproceedings{icassp2018_newmulticarrierd,
  title = {New Multi-Carrier Demodulation Method Applied to Gearbox Vibration Analysis},
  author = {Elisa Hubert and Axel Barrau and Mohamed El Badaoui},
  booktitle = {ICASSP 2018},
  year = {2018}
}