Omicron: a tool to characterize transient noise in gravitational-wave detectors

Florent Robinet*, Nicolas Arnaud, Nicolas Leroy, Andrew Lundgren, Duncan Macleod, Jessica McIver

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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The Omicron software is a tool developed to perform a multi-resolution time–frequency analysis of data from gravitational-wave detectors: the LIGO, Virgo, and KAGRA detectors. Omicron generates spectrograms from whitened data streams, offering a visual representation of transient detector noises and gravitational-wave events. In addition, these events can be parameterized with an optimized resolution. They can be written to disk to conduct offline noise characterization and gravitational-wave event validation studies. Omicron is optimized to process, in parallel, thousands of data streams recorded by gravitational-wave detectors. The Omicron software plays an important role in vetting gravitational-wave detection candidates and characterization of transient noise.

Original languageEnglish
Article number100620
Number of pages6
Early online date13 Nov 2020
Publication statusPublished - 1 Dec 2020


  • Gravitational waves
  • LIGO–Virgo
  • Spectrogram
  • Transient noise
  • RCUK
  • STFC
  • ST/N000668/1


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