QoQ: a Q-transform based test for Gravitational Wave transient events
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No Canadian affiliation. An affiliation-only frame — the usual design — would never have seen this work. It is one of the works that make the case for inverting the frame.
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Proposes a Q-transform based test for gravitational-wave transient detection; a domain data-analysis method in physics.
It develops a domain-specific gravitational-wave detection method rather than studying research practice.
Signal-processing test to reject gravitational-wave glitches; domain detector method, not metaresearch.
Abstract
The observation of transient gravitational waves is hindered by the presence of transient noise, colloquially referred to as glitches. These glitches can often be misidentified as gravitational waves by searches for unmodeled transients using the excess-power type of methods and sometimes even excite template waveforms for compact binary coalescences while using matched filter techniques. They thus create a significant background in the searches. This background is more critical in getting identified promptly and efficiently within the context of real-time searches for gravitational-wave transients. Such searches are the ones that have enabled multi-messenger astrophysics with the start of the Advanced LIGO and Advanced Virgo data taking in 2015 and they will continue to enable the field for further discoveries. With this work we propose and demonstrate the use of a signal-based test that quantifies the fidelity of the time-frequency decomposition of the putative signal based on first principles on how astrophysical transients are expected to be registered in the detectors and empirically measuring the instrumental noise. It is based on the Q-transform and a measure of the occupancy of the corresponding time-frequency pixels over select time-frequency volumes; we call it ``QoQ''. Our method shows a 40% reduction in the number of retraction of public alerts that were issued by the LIGO-Virgo-KAGRA collaborations during the third observing run with negligible loss in sensitivity. Receiver Operator Characteristic measurements suggest the method can be used in online and offline searches for transients, reducing their background significantly.
Stored with the screening record, where it is evidence for the labels above.
The record
- Venue
- arXiv (Cornell University)
- Topic
- Pulsars and Gravitational Waves Research
- Field
- Physics and Astronomy
- Canadian institutions
- —
- Funders
- Natural Sciences and Engineering Research Council of CanadaCalifornia Institute of TechnologyMassachusetts Institute of TechnologyScience and Technology Facilities CouncilNational Science Foundation
- Keywords
- LIGOGravitational wavePhysicsContext (archaeology)Transient (computer programming)Noise (video)Filter (signal processing)DetectorComputer scienceSensitivity (control systems)WaveformReal-time computingAstrophysicsElectronic engineeringArtificial intelligenceOpticsEngineeringComputer vision
- Has abstract in OpenAlex
- yes