The noise of gravitational wave detectors is Gaussian but non-stationary so any good filtering technique should be adaptive. We propose a two-step adaptive procedure to identify signal and/or noise bursts, consisting of an adaptive zero phase Wiener filter in the frequency domain followed by a series of band-pass filters and an adaptive threshold algorithm to identify the events and their characteristics. This approach has been applied to simulated Virgo-like data.
Frequency domain adaptive filter for gravitational burst analysis / Laura, Brocco; Frasca, Sergio. - In: CLASSICAL AND QUANTUM GRAVITY. - ISSN 0264-9381. - 21:5(2004), pp. S793-S796. (Intervento presentato al convegno 5th Edoardo Amaldi Conference on Gravitational Waves tenutosi a Tirrenia, ITALY nel JUL 06-11, 2003) [10.1088/0264-9381/21/5/059].
Frequency domain adaptive filter for gravitational burst analysis
FRASCA, Sergio
2004
Abstract
The noise of gravitational wave detectors is Gaussian but non-stationary so any good filtering technique should be adaptive. We propose a two-step adaptive procedure to identify signal and/or noise bursts, consisting of an adaptive zero phase Wiener filter in the frequency domain followed by a series of band-pass filters and an adaptive threshold algorithm to identify the events and their characteristics. This approach has been applied to simulated Virgo-like data.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
