Frequency domain adaptive filter for gravitational burst analysis

Authors: Brocco L.; Frasca S.

Source: Classical and Quantum Gravity, Volume 21, Number 5, 7 March 2004 , pp. S793-S796(1)

Publisher: Institute of Physics Publishing

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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.

Document Type: Research article

DOI: 10.1088/0264-9381/21/5/059

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