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Title: All-sky search algorithms for monochromatic signals in bar gravitational wave detector data
Author: Lobo Gutiérrez, José Alberto, 1953-
Montero Torralbo, Miquel
Keywords: Gravitació
Anàlisi multivariable
Multivariate analysis
Issue Date: 1998
Publisher: Royal Astronomical Society
Abstract: In this paper we design and develop several filtering strategies for the analysis of data generated by a resonant bar gravitational wave (GW) antenna, with the goal of assessing the presence (or absence) therein of long-duration monochromatic GW signals, as well as the eventual amplitude and frequency of the signals, within the sensitivity band of the detector. Such signals are most likely generated in the fast rotation of slightly asymmetric spinning stars. We develop practical procedures, together with a study of their statistical properties, which will provide us with useful information on the performance of each technique. The selection of candidate events will then be established according to threshold-crossing probabilities, based on the Neyman-Pearson criterion. In particular, it will be shown that our approach, based on phase estimation, presents a better signal-to-noise ratio than does pure spectral analysis, the most common approach.
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It is part of: Monthly Notices of the Royal Astronomical Society, 1998, vol. 301, num. 3, p. 729-744
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ISSN: 0035-8711
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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