Infrasound direction of arrival determination using a balloon-borne aeroseismometer

Bowman, Daniel C.; Rouse, Jerry W.; Krishnamoorthy, Siddharth; Silber, Elizabeth A.

doi:10.1121/10.0010378

Infrasound direction of arrival determination using a balloon-borne aeroseismometer

Journal Article · Mon May 02 00:00:00 EDT 2022 · JASA Express Letters

DOI:https://doi.org/10.1121/10.0010378· OSTI ID:2565075

; Rouse, Jerry W.; Krishnamoorthy, Siddharth;

Free-floating balloons are an emerging platform for infrasound recording, but they cannot host arrays sufficiently wide for multi-sensor acoustic direction finding techniques. Because infrasound waves are longitudinal, the balloon motion in response to acoustic loading can be used to determine the signal azimuth. This technique, called “aeroseismometry,” permits sparse balloon-borne networks to geolocate acoustic sources. This is demonstrated by using an aeroseismometer on a stratospheric balloon to measure the direction of arrival of acoustic waves from successive ground chemical explosions. A geolocation algorithm adapted from hydroacoustics is then used to calculate the location of the explosions.

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Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

OSTI ID:: 2565075

Alternate ID(s):: OSTI ID: 1865965
OSTI ID: 1871995

Journal Information:: JASA Express Letters, Journal Name: JASA Express Letters Journal Issue: 5 Vol. 2; ISSN 2691-1191

Publisher:: Acoustical Society of America (ASA)Copyright Statement

Country of Publication:: United States

Language:: English

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