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Proceedings Paper

IIR adaptive filters for detection of gravitational waves from coalescing binaries
Author(s): Fausto Acernese; Fabrizio Barone; Rosario De Rosa; Antonio Eleuteri; Lara Giordano; Leopoldo Milano
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Paper Abstract

In this paper we propose a new strategy for gravitational waves detection from coalescing binaries, using IIR Adaptive Line Enhancer (ALE) filters. This strategy is a classical hierarchical strategy in which the ALE filters have the role of triggers, used to select data chunks which may contain gravitational events, to be further analyzed with more refined optimal techniques, like the the classical Matched Filter Technique. After a direct comparison of the performances of ALE filters with the Wiener-Komolgoroff optimum filters (matched filters), necessary to discuss their performance and to evaluate the statistical limitation in their use as triggers, we performed a series of tests, demonstrating that these filters are quite promising both for the relatively small computational power needed and for the robustness of the algorithms used. The performed tests have shown a weak point of ALE filters, that we fixed by introducing a further strategy, based on a dynamic bank of ALE filters, running simultaneously, but started after fixed delay times. The results of this global trigger strategy seems to be very promising, and can be already used in the present interferometers, since it has the great advantage of requiring a quite small computational power and can easily run in real-time, in parallel with other data analysis algorithms.

Paper Details

Date Published: 29 September 2004
PDF: 9 pages
Proc. SPIE 5500, Gravitational Wave and Particle Astrophysics Detectors, (29 September 2004); doi: 10.1117/12.553016
Show Author Affiliations
Fausto Acernese, INFN (Italy)
Univ. degli Studi di Napoli Federico II (Italy)
Fabrizio Barone, Univ. degli Studi di Salerno (Italy)
Rosario De Rosa, INFN (Italy)
Univ. degli Studi di Napoli Federico II (Italy)
Antonio Eleuteri, INFN (Italy)
Univ. degli Studi di Napoli Federico II (Italy)
Lara Giordano, INFN (Italy)
Univ. degli Studi di Napoli Federico II (Italy)
Leopoldo Milano, INFN (Italy)
Univ. degli Studi di Napoli Federico II (Italy)

Published in SPIE Proceedings Vol. 5500:
Gravitational Wave and Particle Astrophysics Detectors
James Hough; Gary H. Sanders, Editor(s)

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