Signal based vetoes for the detection of gravitational waves from inspiralling compact binaries

The matched filtering technique is used to search for gravitational wave signals of a known form in the data taken by ground-based detectors. However, the analyzed data contains a number of artifacts arising from various broad-band transients (glitches) of instrumental or environmental origin which...

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Veröffentlicht in:Physical review. D, Particles and fields Particles and fields, 2005-07, Vol.72 (2), Article 022002
Hauptverfasser: Babak, S., Grote, H., Hewitson, M., Lück, H., Strain, K. A.
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Sprache:eng
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Zusammenfassung:The matched filtering technique is used to search for gravitational wave signals of a known form in the data taken by ground-based detectors. However, the analyzed data contains a number of artifacts arising from various broad-band transients (glitches) of instrumental or environmental origin which can appear with high signal-to-noise ratio on the matched filtering output. This paper describes several techniques to discriminate genuine events from the false ones, based on our knowledge of the signals we look for. Starting with the {chi}{sup 2} discriminator, we show how it may be optimized for free parameters. We then introduce several alternative vetoing statistics and discuss their performance using data from the GEO 600 detector.
ISSN:1550-7998
0556-2821
1550-2368
1089-4918
DOI:10.1103/PhysRevD.72.022002