A power filter for the detection of burst events based on time frequency spectrum estimation

Details A power filter for the detection of burst events based on time frequency spectrum estimation A power filter for the detection of burst events based on time frequency spectrum estimation

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cqgra..21s.815g&link_type=abstract

Classical and Quantum Gravity, Volume 21, Issue 5, pp. S815-S820 (2004).

Physics

5

Scientific paper

We propose as a statistic for the detection of bursts in a gravitational wave interferometer the 'energy' of the events estimated with a time-dependent calculation of the spectrum. This statistic has an asymptotic Gaussian distribution with known statistical moments, which makes it possible to perform a uniformly most powerful test (McDonough R N and Whalen A D 1995 Detection of Signals in Noise (New York: Academic)) on the energy mean. We estimate the receiver operating characteristic (ROC, from the same book) of this statistic for different levels of the signal-to-noise ratio in the specific case of a simulated noise having the spectral density expected for Virgo, using test signals taken from a library of possible waveforms emitted during the collapse of the core of type II supernovae.

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