Whitening of non-stationary noise from gravitational wave detectors

Details Whitening of non-stationary noise from gravitational wave detectors Whitening of non-stationary noise from gravitational wave detectors

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cqgra..21s.801c&link_type=abstract

Classical and Quantum Gravity, Volume 21, Issue 5, pp. S801-S806 (2004).

Computer Science

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1

Scientific paper

We investigate the possibility of improving the detection efficiency for deterministic gravitational wave signals in the presence of non-stationary noise. The proposed method is based on an adaptive whitening procedure to be applied to the experimental data, and depends on a 'forgetting factor' parameter λ. We test the method on simulated data, and show that by choosing λ appropriately it is possible to reduce the non-stationarity noise of the time series and to implement a detector which approaches the performances of the optimal Wiener filter for a deterministic signal in the presence of non-stationary noise of known Gaussian statistic.

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