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.
Cuoco E, Cella G, Guidi GM (2004). Whitening of non-stationary noise from gravitational wave detectors. CLASSICAL AND QUANTUM GRAVITY, 21(5), 801-806 [10.1088/0264-9381/21/5/061].
Whitening of non-stationary noise from gravitational wave detectors
Cuoco E
;
2004
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
