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No Access Submitted: 13 October 2009 Accepted: 08 January 2010 Published Online: 05 April 2010

  • Adaptive passive fathometer processing

The Journal of the Acoustical Society of America 127, 2193 (2010); https://doi.org/10.1121/1.3303985
Martin Siderius
  • Department of Electrical and Computer Engineering, Portland State University, Portland, Oregon 97201
    • Heechun Song, Peter Gerstoft, and William S. Hodgkiss
  • Marine Physical Laboratory, Scripps Institution of Oceanography, La Jolla, California 92093-0238
    • Paul Hursky
  • HLS Research Inc., 3366 North Torrey Pines Court, Suite 310, La Jolla, California 92037
    • Chris Harrison
  • NATO Undersea Research Centre, Viale San Bartolomeo, 400, 19126 La Spezia, Italy
    • more...View Contributors
    • Martin Siderius
    • Heechun Song
    • Peter Gerstoft
    • William S. Hodgkiss
    • Paul Hursky
    • Chris Harrison
    ABSTRACT
    Recently, a technique has been developed to image seabed layers using the ocean ambient noise field as the sound source. This so called passive fathometer technique exploits the naturally occurring acoustic sounds generated on the sea-surface, primarily from breaking waves. The method is based on the cross-correlation of noise from the ocean surface with its echo from the seabed, which recovers travel times to significant seabed reflectors. To limit averaging time and make this practical, beamforming is used with a vertical array of hydrophones to reduce interference from horizontally propagating noise. The initial development used conventional beamforming, but significant improvements have been realized using adaptive techniques. In this paper, adaptive methods for this process are described and applied to several data sets to demonstrate improvements possible as compared to conventional processing.

    ACKNOWLEDGMENTS

    We would like to gratefully acknowledge support for this research by the Office of Naval Research Ocean Acoustics Program. We also would also like to acknowledge the NURC for providing the MAPEX2000bis, Boundary 2003, and ElbaEx data. We would like to thank Peter Nielsen, Mark Stevenson, Finn Jensen, Charles Holland, and Michael Porter for their collaboration on these experiments and data sets, and Keyko McDonald and Brian Granger from SPAWAR for providing the Dabob Bay data.

    REFERENCES
    Section:
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    1. 1. M. Siderius, C. H. Harrison, and M. B. Porter, “A passive fathometer technique for imaging seabed layering using ambient noise,” J. Acoust. Soc. Am. 120, 1315–1323 (2006). https://doi.org/10.1121/1.2227371, Google ScholarScitation, ISI
    2. 2. C. H. Harrison, “Sub-bottom profiling using ocean ambient noise,” J. Acoust. Soc. Am. 115, 1505–1515 (2004). https://doi.org/10.1121/1.1645854, Google ScholarScitation, ISI
    3. 3. C. H. Harrison, “Performance and limitations of spectral factorization for ambient noise sub-bottom profiling,” J. Acoust. Soc. Am. 118, 2913–2923 (2005). https://doi.org/10.1121/1.2048967, Google ScholarScitation, ISI
    4. 4. M. J. Buckingham and S. A. S. Jones, “A new shallow-ocean technique for determining the critical angle of the seabed from the vertical directionality of the ambient noise in the water column,” J. Acoust. Soc. Am. 81, 938–946 (1987). https://doi.org/10.1121/1.394573, Google ScholarScitation, ISI
    5. 5. C. H. Harrison and D. G. Simons, “Geoacoustic inversion of ambient noise: A simple method,” J. Acoust. Soc. Am. 112, 1377–1389 (2002). https://doi.org/10.1121/1.1506365, Google ScholarScitation, ISI
    6. 6. C. H. Harrison and M. Siderius, “Bottom profiling by correlating beam-steered noise sequences,” J. Acoust. Soc. Am. 123, 1282–1296 (2008). https://doi.org/10.1121/1.2835416, Google ScholarScitation, ISI
    7. 7. S. L. Means and M. Siderius, “Effects of sea-surface conditions on passive fathometry and bottom characterization,” J. Acoust. Soc. Am. 126, 2234–2241 (2009). https://doi.org/10.1121/1.3216915, Google ScholarScitation, ISI
    8. 8. P. Gerstoft, W. S. Hodgkiss, M. Siderius, C. -F. Huang, and C. H. Harrison, “Passive fathometer processing,” J. Acoust. Soc. Am. 123, 1297–1305 (2008). https://doi.org/10.1121/1.2831930, Google ScholarScitation, ISI
    9. 9. C. H. Harrison, “Anomalous signed passive fathometer impulse response when using adaptive beam forming,” J. Acoust. Soc. Am. 125, 3511–3513 (2009). https://doi.org/10.1121/1.3126345, Google ScholarScitation
    10. 10. J. Traer, P. Gerstoft, H. Song, and W. S. Hodgkiss, “On the sign of the adaptive passive fathometer impulse response,” J. Acoust. Soc. Am. 126, 1657–1658 (2009). https://doi.org/10.1121/1.3206696, Google ScholarScitation
    11. 11. A. Frantzis, “Does acoustic testing strand whales?,” Nature (London) 392, 29 (1998). https://doi.org/10.1038/32068, Google ScholarCrossref
    12. 12. J. Rickett and J. Claerbout, “Acoustic daylight imaging via spectral factorization: Helioseismology and reservoir monitoring,” The Leading Edge18, 957–960 (1999). https://doi.org/10.1190/1.1438420, Google ScholarCrossref
    13. 13. R. L. Weaver and O. I. Lobkis, “Ultrasonics without a source: Thermal fluctuation correlations at MHz frequencies,” Phys. Rev. Lett. 87, 134301–134304 (2001). https://doi.org/10.1103/PhysRevLett.87.134301, Google ScholarCrossref, ISI
    14. 14. O. I. Lobkis and R. L. Weaver, “On the emergence of the Green’s function in the correlations of a diffuse field,” J. Acoust. Soc. Am. 110, 3011–3017 (2001). https://doi.org/10.1121/1.1417528, Google ScholarScitation, ISI
    15. 15. P. Roux, W. A. Kuperman, and the NPAL Group, “Extracting coherent wave fronts from acoustic ambient noise in the ocean,” J. Acoust. Soc. Am. 116, 1995–2003 (2004). https://doi.org/10.1121/1.1797754, Google ScholarScitation, ISI
    16. 16. P. Roux, K. G. Sabra, and W. A. Kuperman, “Ambient noise cross correlation in free space: Theoretical approach,” J. Acoust. Soc. Am. 117, 79–83 (2005). https://doi.org/10.1121/1.1830673, Google ScholarScitation, ISI
    17. 17. L. A. Brooks and P. Gerstoft, “Green’s function approximation from cross-correlations of 20–100 Hz noise during a tropical storm,” J. Acoust. Soc. Am. 125, 723–734 (2009). https://doi.org/10.1121/1.3056563, Google ScholarScitation, ISI
    18. 18. K. G. Sabra, P. Roux, and W. A. Kuperman, “Arrival-time structure of the time-averaged ambient noise cross-correlation function in an oceanic waveguide,” J. Acoust. Soc. Am. 117, 164–174 (2005). https://doi.org/10.1121/1.1835507, Google ScholarScitation, ISI
    19. 19. K. G. Sabra, P. Roux, and W. A. Kuperman, “Emergence rate of the time-domain Green’s function from the ambient noise cross-correlation function,” J. Acoust. Soc. Am. 118, 3524–3530 (2005). https://doi.org/10.1121/1.2109059, Google ScholarScitation, ISI
    20. 20. O. A. Godin, “Recovering the acoustic Green’s function from ambient noise cross correlation in an inhomogeneous moving medium,” Phys. Rev. Lett. 97, 054301 (2006). https://doi.org/10.1103/PhysRevLett.97.054301, Google ScholarCrossref, ISI
    21. 21. M. Siderius, P. L. Nielsen, and P. Gerstoft, “Range-dependent seabed characterization by inversion of acoustic data from a towed receiver array,” J. Acoust. Soc. Am. 112, 1523–1535 (2002). https://doi.org/10.1121/1.1502264, Google ScholarScitation, ISI
    22. 22. H. L. Van Trees, Detection, Estimation, and Modulation Theory: Part IV: Optimum Array Processing (Wiley, New York, 2002). Google Scholar
    23. 23. W. S. Burdic, Underwater Acoustic System Analysis (Prentice-Hall, Englewood Cliffs, NJ, 1984). Google Scholar
    24. 24. H. C. Song, W. A. Kuperman, W. S. Hodgkiss, P. Gerstoft, and J. S. Kim, “Null broadening with snapshot-deficient covariance matrices in passive sonar,” IEEE J. Ocean. Eng. 28, 250–261 (2003). https://doi.org/10.1109/JOE.2003.814055, Google ScholarCrossref, ISI
    25. 25. H. Cox, R. M. Zeskind, and M. M. Owen, “Robust adaptive beamforming,” IEEE Trans. Acoust., Speech, Signal Process. 35, 1365–1376 (1987). https://doi.org/10.1109/TASSP.1987.1165054, Google ScholarCrossref
    26. 26. C. W. Holland, “Coupled scattering and reflection measurements in shallow water,” IEEE J. Ocean. Eng. 27, 454–470 (2002). https://doi.org/10.1109/JOE.2002.1040930, Google ScholarCrossref
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