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arXiv 0906.2120gr-qc
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利用引力波探测器网络中的时间滑动进行本底估计

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

Michal Was, Marie-Anne Bizouard, Violette Brisson, Fabien Cavalier, Michel Davier, Patrice Hello, Nicolas Leroy, Florent Robinet, Vavoulidis Miltiadis

摘要:

对符合操作的引力波探测器的输出进行时移是在搜索短持续时间信号时估计背景的方便方式。然而,该过程是有限的,因为无限增加时移的数量不能提供更好的估计。我们发现,虚警率估计误差饱和的时间移位的数量。特别地,对于具有非常不同的触发率的检测器,该误差在大的值处饱和。对2个检测器和3个检测器进行显式计算,其中检测统计依赖于网络中3对的重合的逻辑“或”。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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