A comparison of methods for 3D target localization from seismic and acoustic signatures

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Description

An important application of seismic and acoustic unattended ground sensors (UGS) is the estimation of the three dimensional position of an emitting target. Seismic and acoustic data derived from UGS systems provide the taw information to determine these locations, but can be processed and analyzed in a number of ways using varying amounts of auxiliary information. Processing methods to improve arrival time picking for continuous wave sources and methods for determining and defining the seismic velocity model are the primary variables affecting the localization accuracy. Results using field data collected from an underground facility have shown that using an iterative ... continued below

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11 p.

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ELBRING,GREGORY J.; GARBIN,H. DOUGLAS & LADD,MARK D. April 3, 2000.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

An important application of seismic and acoustic unattended ground sensors (UGS) is the estimation of the three dimensional position of an emitting target. Seismic and acoustic data derived from UGS systems provide the taw information to determine these locations, but can be processed and analyzed in a number of ways using varying amounts of auxiliary information. Processing methods to improve arrival time picking for continuous wave sources and methods for determining and defining the seismic velocity model are the primary variables affecting the localization accuracy. Results using field data collected from an underground facility have shown that using an iterative time picking technique significantly improves the accuracy of the resulting derived target location. Other processing techniques show little advantage over simple crosscorrelation along in terms of accuracy, but may improve the ease with which time picks can be made. An average velocity model found through passive listening or a velocity model determined from a calibration source near the target source both result in similar location accuracies, although the use of station correction severely increases the location error.

Physical Description

11 p.

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OSTI as DE00753449

Medium: P; Size: 11 pages

Source

  • International Society for Optical Engineering, Orlando, FL (US), 04/24/2000--04/28/2000

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  • Report No.: SAND2000-0823C
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 753449
  • Archival Resource Key: ark:/67531/metadc712151

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  • April 3, 2000

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 6, 2017, 7:25 p.m.

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ELBRING,GREGORY J.; GARBIN,H. DOUGLAS & LADD,MARK D. A comparison of methods for 3D target localization from seismic and acoustic signatures, article, April 3, 2000; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc712151/: accessed January 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.