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Coherent network analysis technique for discriminating gravitational-wave bursts from instrumental noise
General Relativity and Quantum Cosmology · Submitted 29 Apr 2006
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim 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.
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The abstract, sentence by sentence
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.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | 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. | background 1.00 | 0.03 | 0.03 | asserted 1.00 |
| s1 | 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. | background 0.71 | 0.05 | 0.05 | hedged possibility 0.84 |
| s2 | 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. | contribution 1.00 | 0.91 | 0.65 | asserted 0.96 |
| s3 | This technique does not require any a priori knowledge of the putative burst waveform. | method 0.53 | 0.70 | 0.11 | asserted 1.00 |
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The paper
Original abstract
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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References
How the literature uses it
21 arXiv papers cite this in 26 sentences
Papers citing it · 20 sentences without a confident label
Builds on it 1 paper
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This idea was further extended and built on in [ref] ; see also [ref] in the context of third-generation detectors such as Einstein Telescope.
Generic searches for alternative gravitational wave polarizations with networks of interferometric detectors · Introduction · 0.94
Uses its method or tool 3 papers
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A commonly used application for LIGO-Virgo gravitational wave searches is X-Pipeline [ref] , which assumes that only tensor polarizations can be present, and then compares the null energy (essentially the square of the null stream) with other combinations of detector outputs to search for GW signals that are in accordance with GR.
Generic searches for alternative gravitational wave polarizations with networks of interferometric detectors · Introduction · 0.81
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Employing a null-stream statistic [ref] to complement the detection statistic might also help in discriminating against such noise.
Multibaseline gravitational wave radiometry · Discussion · 0.83
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A common approach [ref] to the detection and reconstruction of gravitational-wave signals, defines the two hypotheses: $H_0$ “data when a gravitational-wave signal is absent” and $H_1$ “data when a gravitational-wave signal is present." Assuming the noise as stationary Gaussian white noise not correlated between detectors, the corresponding probability densities can be determined as: [equation]
Gravitational-wave searches in the era of Advanced LIGO and Virgo · Unmodelled pipelines · 0.80
Cites it as background 2 papers
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Searches for Burst signals have been based on frameworks that employ detection statistics to measure the likelihood that Gaussian noise could produce the data [ref] .
Enabling high confidence detections of gravitational-wave bursts · Method · 0.91
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First considered by [ref] and [ref] , null streams are directions orthogonal to the plus and cross polarizations of GR.
Gravitational wave polarizations with different propagation speeds · Introduction · 0.96
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