# On the background estimation by time slides in a network of gravitational wave detectors

Abstract : Time shifting the outputs of Gravitational Wave detectors operating in coincidence is a convenient way to estimate the background in a search for short duration signals. However this procedure is limited as increasing indefinitely the number of time shifts does not provide better estimates. We show that the false alarm rate estimation error saturates with the number of time shifts. In particular, for detectors with very different trigger rates this error saturates at a large value. Explicit computations are done for 2 detectors, and for 3 detectors where the detection statistic relies on the logical OR'' of the coincidences of the 3 couples in the network.
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http://hal.in2p3.fr/in2p3-00394333
Contributor : Michal Was <>
Submitted on : Wednesday, November 25, 2009 - 2:45:42 PM
Last modification on : Thursday, December 3, 2020 - 8:08:06 PM
Long-term archiving on: : Thursday, September 23, 2010 - 11:00:07 AM

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### Citation

Michal Was, Marie-Anne Bizouard, Violette Brisson, Fabien Cavalier, Michel Davier, et al.. On the background estimation by time slides in a network of gravitational wave detectors. Classical and Quantum Gravity, IOP Publishing, 2010, 27, 015005 (12 p.). ⟨10.1088/0264-9381/27/1/015005⟩. ⟨in2p3-00394333v2⟩

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