Implementation of de-noising methods in the cWB pipeline for the analysis of LIGO/Virgo gravitational data
Abstract
A total variation method is proposed to de-noise the gravitational wave data taken by the International Gravitational Wave Network. We use a regularized version of the Rudin-Osher-Fatemi method to de-noise and extract gravitational wave signals from the data. This method has previously proven to deliver satisfatory results when de-noising numerically generated gravitational waves injected in simulated noise. The method needs a parametrization which will determine the efficiency of the de-noising, ranging from a small reduction of the noise present in the data to the removal of a huge portion of the data, including the detected signal. Currently, its implementation in the cWB data analysis pipeline is under developement. We will shortly provide results of its effectiveness with real data taken by the LIGO/Virgo interferomenters during O3.
- Publication:
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XIV.0 Scientific Meeting (virtual) of the Spanish Astronomical Society
- Pub Date:
- July 2020
- Bibcode:
- 2020sea..confE.212B