Whitening of non-stationary noise from gravitational wave detectors

被引:14
作者
Cuoco, E
Cella, G
Guidi, GM
机构
[1] Ist Nazl Fis Nucl, Sez Firenze, I-50019 Sesto Fiorentino, FI, Italy
[2] Dipartimento Fis, I-56172 Pisa, Italy
[3] Ist Nazl Fis Nucl, Sez Pisa, I-56172 Pisa, Italy
[4] Ist Fis, I-61029 Urbino, Italy
[5] Ist Nazl Fis Nucl, Sez Firenze, I-61029 Urbino, Italy
关键词
D O I
10.1088/0264-9381/21/5/061
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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 X. We test the method on simulated data, and show that by choosing X 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.
引用
收藏
页码:S801 / S806
页数:6
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