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Updated: Feb 17, 2026

Author Spotlight: Unlocking New Insights in fNIRS Studies - A Novel Framework for Inter-Brain Synchrony Analysis
Published on: October 6, 2023
Cross-beam coherence of infrasonic signals at local and regional ranges
W C Kirkpatrick Alberts1, Stephen M Tenney1
1U.S. Army Research Laboratory, Attention RDRL-SES-P, 2800 Powder Mill Road, Adelphi, Maryland 20783, USA william.c.alberts4.civ@mail.mil, stephen.m.tenney2.civ@mail.mil.
Abstract:
Signals collected by infrasound arrays require continuous analysis by skilled personnel or by automatic algorithms in order to extract useable information. Typical pieces of information gained by analysis of infrasonic signals collected by multiple sensor arrays are arrival time, line of bearing, amplitude, and duration. These can all be used, often with significant accuracy, to locate sources. A very important part of this chain is associating collected signals across multiple arrays. Here, a pairwise, cross-beam coherence method of signal association is described that allows rapid signal association for high signal-to-noise ratio events captured by multiple infrasound arrays at ranges exceeding 150 km. Methods, test cases, and results are described.
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