Journal
JASA EXPRESS LETTERS
Volume 2, Issue 5, Pages -Publisher
AIP Publishing
DOI: 10.1121/10.0010378
Keywords
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Categories
Funding
- U.S. Department of Energy's National Nuclear Security Administration [DE-NA0003525]
- DARPA AtmoSense program [067201110A]
- NASA Flight Opportunities Program - National Nuclear Security Administration, Defense Nuclear Nonproliferation Research and Development (NNSA DNN RD) [80?NM0018D004]
- National Aeronautics and Space Administration
- U.S. Department of Energy's National Nuclear Security Administration [DE-NA0003525]
- DARPA AtmoSense program [067201110A]
- National Nuclear Security Administration, Defense Nuclear Nonproliferation Research and Development (NNSA DNN RD)
- National Aeronautics and Space Administration [80?NM0018D004]
- [NM0018D004]
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Free-floating balloons can be used for infrasound recording and geolocation of acoustic sources using aeroseismometry.
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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