Search Results - "Dzieciuch, Matthew A"
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Acoustic travel-time variability observed on a 150-km radius tomographic array in the Canada Basin during 2016–2017
Published in The Journal of the Acoustical Society of America (01-05-2023)“…The Arctic Ocean is undergoing dramatic changes in response to increasing atmospheric concentrations of greenhouse gases. The 2016–2017 Canada Basin Acoustic…”
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Signal processing and tracking of arrivals in ocean acoustic tomography
Published in The Journal of the Acoustical Society of America (01-11-2014)“…The signal processing for ocean acoustic tomography experiments has been improved to account for the scattering of the individual arrivals. The scattering…”
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Time series of temperature in Fram Strait determined from the 2008–2009 DAMOCLES acoustic tomography measurements and an ocean model
Published in Journal of geophysical research. Oceans (01-07-2016)“…A pilot acoustic tomography program in Fram Strait during 2008–2009 measured a year‐long record of acoustic travel times along a 130 km range acoustic path…”
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Measurements of the correlation of the frequency-difference autoproduct with acoustic and predicted-autoproduct fields in the deep ocean
Published in The Journal of the Acoustical Society of America (01-02-2021)“…Frequency-domain spatial-correlation analysis of recorded acoustic fields is typically limited to the bandwidth of the recordings. A previous study [Lipa,…”
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Observations of sound-speed fluctuations in the Beaufort Sea from summer 2016 to summer 2017
Published in The Journal of the Acoustical Society of America (01-03-2021)“…Due to seasonal ice cover, acoustics can provide a unique means for Arctic undersea communication, navigation, and remote sensing. This study seeks to quantify…”
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An automated framework for long-range acoustic positioning of autonomous underwater vehicles
Published in The Journal of the Acoustical Society of America (01-09-2022)“…An automated method was developed to align underwater acoustic receptions at various depths and ranges to a single reference prediction of long range acoustic…”
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Eastern Arctic ambient noise on a drifting vertical array
Published in The Journal of the Acoustical Society of America (01-10-2017)“…Ambient noise in the eastern Arctic was studied from April to September 2013 using a 22 element vertical hydrophone array as it drifted from near the North…”
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Vertical line array measurements of ambient noise in the North Pacific
Published in The Journal of the Acoustical Society of America (01-03-2017)“…Shipping noise and wind are the dominant sources of ocean noise in the frequency band between 20 and 500 Hz. This paper analyzes noise in that band using data…”
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Using long-range transmissions in the Beaufort Gyre to test the sound-speed equation at high pressure and low temperature
Published in The Journal of the Acoustical Society of America (01-10-2023)“…An ocean acoustic tomography array with a radius of 150 km was deployed in the central Beaufort Gyre during 2016–2017 for the Canada Basin Acoustic Propagation…”
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Deep ocean long range underwater navigation
Published in The Journal of the Acoustical Society of America (01-04-2020)“…A long range Underwater Navigation Algorithm (UNA) is described that provides a geolocation underwater while submerged without having to surface for a Global…”
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Temporal and spatial dependence of a yearlong record of sound propagation from the Canada Basin to the Chukchi Shelf
Published in The Journal of the Acoustical Society of America (01-09-2020)“…The Pacific Arctic Region has experienced decadal changes in atmospheric conditions, seasonal sea-ice coverage, and thermohaline structure that have…”
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A performance comparison between m-sequences and linear frequency-modulated sweeps for the estimation of travel-time with a moving source
Published in The Journal of the Acoustical Society of America (01-10-2021)“…This manuscript discusses the utility of maximal period linear binary pseudorandom sequences [also referred to as m-sequences or maximum length sequences…”
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Beaufort Sea observations of 11 to 12.5 kHz surface pulse reflections near 50 degree grazing angle from summer 2016 to summer 2017
Published in The Journal of the Acoustical Society of America (01-01-2022)“…Sea-surface acoustic scattering is investigated using observations from the 2016-2017 Canada Basin Acoustic Propagation Experiment. The motions of the…”
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Observations of the space/time scales of Beaufort sea acoustic duct variability and their impact on transmission loss via the mode interaction parameter
Published in The Journal of the Acoustical Society of America (01-05-2023)“…The Beaufort duct (BD) is a subsurface sound channel in the western Arctic Ocean formed by cold Pacific Winter Water (PWW) sandwiched between warmer Pacific…”
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Observations of phase and intensity fluctuations for low-frequency, long-range transmissions in the Philippine Sea and comparisons to path-integral theory
Published in The Journal of the Acoustical Society of America (01-07-2019)“…In the Philippine Sea, from April 2010 to March 2011, a 330-km radius pentagonal acoustic transceiver array with a sixth transceiver in the center transmitted…”
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Deep seafloor arrivals: An unexplained set of arrivals in long-range ocean acoustic propagation
Published in The Journal of the Acoustical Society of America (01-08-2009)“…Receptions, from a ship-suspended source (in the band 50-100 Hz) to an ocean bottom seismometer (about 5000 m depth) and the deepest element on a vertical…”
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Observations of low-frequency, long-range acoustic propagation in the Philippine Sea and comparisons with mode transport theory
Published in The Journal of the Acoustical Society of America (01-02-2020)“…The year-long Philippine Sea (2010–2011) experiment (PhilSea) was an extensive deep water acoustic propagation experiment in which there were six different…”
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Erratum: Deep ocean long range underwater navigation [J. Acoust. Soc. Am. 147(4), 2365–2382 (2020)]
Published in The Journal of the Acoustical Society of America (01-05-2021)Get full text
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Three-dimensional bottom diffraction in the North Pacific
Published in The Journal of the Acoustical Society of America (01-09-2019)“…A significant aspect of bottom-interaction in deep water acoustic propagation, from point sources to point receivers, is the diffraction (or scattering) of…”
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A test of basin-scale acoustic thermometry using a large-aperture vertical array at 3250-km range in the eastern North Pacific Ocean
Published in The Journal of the Acoustical Society of America (01-06-1999)“…Broadband acoustic signals were transmitted during November 1994 from a 75-Hz source suspended near the depth of the sound-channel axis to a 700-m long…”
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