Coherent network analysis technique for discriminating gravitational-wave bursts from instrumental noise

Details Coherent network analysis technique for discriminating gravitational-wave bursts from instrumental noise Coherent network analysis technique for discriminating gravitational-wave bursts from instrumental noise

2006-04-29

arxiv.org/abs/gr-qc/0605002v2

Phys.Rev.D74:082005,2006

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

18 pages, 11 figures; corrected corrupted figure

Scientific paper

10.1103/PhysRevD.74.082005

Existing coherent network analysis techniques for detecting gravitational-wave bursts simultaneously test data from multiple observatories for consistency with the expected properties of the signals. These techniques assume the output of the detector network to be the sum of a stationary Gaussian noise process and a gravitational-wave signal, and they may fail in the presence of transient non-stationarities, which are common in real detectors. In order to address this problem we introduce a consistency test that is robust against noise non-stationarities and allows one to distinguish between gravitational-wave bursts and noise transients. This technique does not require any a priori knowledge of the putative burst waveform.

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