We report the analysis we made on data taken by Caltech 40-meter prototype interferometer to identify the noise power spectral density and to whiten the sequence of noise. We concentrate our study on data taken in November 1994, in particular we analyzed two frames of data: the 18nov94.2.frame and the 19nov94.2.frame. We show that it is possible to whiten these data, to a good degree of whiteness, using a high order whitening filter. Moreover we can choose to whiten only restricted band of frequencies around the region we are interested in, obtaining a higher level of whiteness.
@article{arxiv.gr-qc/0104071,
title = {Noise parametric identification and whitening for LIGO 40-meter interferometer data},
author = {Elena Cuoco and Giovanni Losurdo and Giovanni Calamai and Leonardo Fabbroni and Massimo Mazzoni and Ruggero Stanga and Gianluca Guidi and Flavio Vetrano},
journal= {arXiv preprint arXiv:gr-qc/0104071},
year = {2014}
}
Comments
11 pages, 15 figures, accepted for publication by Physical Review D