Submitted Papers

H.C. Song, "Broadband acoustic communication with a mobile source (L)," J. Acoust. Soc. Am. (2013). Z Liu, K. Yoo, T.C. Yang, S. Cho, H.C. Song, and D. Ensberg, "Long-range double differentially coded spread spectrum acoustic communications with a towed array," IEEE J. Oceanic Eng. (2012). H.C. Song and W.S. Hodgkiss, "Efficient use of bandwidth for underwater acoustic communication (L)," J. Acoust. Soc. Am. (2012).

Tutorials

W.A. Kuperman and J.F. Lynch, "Shallow-Water Acoustics," Physics Today, October 2004. Copyright (2003) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Physics Today, October 2004, page 55, and may be found at www.PhysicsToday.org/vol-57/iss-10/p55.shtml. The cover of the issue [Download] and the article [Download] Ocean Applications of Time Reversal Acoustics. Power Point Presentation [Download] W.A. Kuperman and H.C. Song, "Integrating Ocean Acoustics and Signal Processing," Advances in Ocean Acoustics , AIP Conf. Proc., 69-82 (2012) [Download]

Journals

2013 T. Shimura, H. Ochi, and H.C. Song, "Experimental demonstration of multiuser communication in deep water using time reversal," J. Acoust. Soc. Am. in press (2013). P. Roux, W.A. Kuperman, B. Cornuelle, F. Aulanier, W.S. Hodgkiss, and H.C. Song, "Analyzing sound speed fluctuations in shallow water from group-velocity versus phase-velocity representation," J. Acoust. Soc. Am. 133(4), 1945-1952 (2013) [Download] S. Cho, H.C. Song, and W.S. Hodgkiss, "Multiuser acoustic communications with mobile users," J. Acoust. Soc. Am. 133 (2), 880-890 (2013). [Download]   2012 S.H. Abadi, H.C. Song, and D.R. Dowling, "Broadband sparse-array blind deconvolution using frequency-difference beamforming," J. Acoust. Soc. Am. 132 (5), 3018-3029 (2012). [Download] H.C. Song, "Acoustic communication in deep water exploiting multiple beams with a horizontal array," J. Acoust. Soc. Am. 132 (2), EL81-EL87 (2012). [Download] H.C. Song and W.S. Hodgkiss, "Diversity combining for long-range acoustic communication in deep water," J. Acoust. Soc. Am. 132 (2), EL68-EL73 (2012). [Download] S. Cho, H.C. Song, and W.S. Hodgkiss, "Asynchronous multiuser underwater acoustic communications (L)," J. Acoust. Soc. Am. 132 (1), 5-8 (2012). [Download] T. Shimura, Y. Watanabe, H. Ochi, and H.C. Song, "Long-range time reversal communication in deep water: Experimental results," J. Acoust. Soc. Am. 132 (1), EL49-EL53 (2012). [Download] T. Kang, H.C. Song, and W.S. Hodgkiss, "Long-range multi-carrier acoustic communication in deep water using a towed horizontal array," J. Acoust. Soc. Am. 131 (6), 4665-4671 (2012). [Download] H.C. Song, "Bidirectional equalization for underwater acoustic communication," J. Acoust. Soc. Am. 131 (4), EL342-EL347 (2012). [Download] S. Cho, H.C. Song, and W.S. Hodgkiss, "Multiuser interference cancellation in time-varying channels," J. Acoust. Soc. Am. 131 (4), EL163-EL169 (2012). [Download]   2011 Y. Isukapalli, H.C. Song, and W.S. Hodgkiss, "Stochastic channel simulator based on local scattering function," J. Acoust. Soc. Am. 130 (4), EL200-EL205 (2011). [Download] T. Kang, H.C. Song, and W.S. Hodgkiss, "Multi-carrier synthetic aperture communication in shallow water: Experimental results," J. Acoust. Soc. Am. 130 (6), 3797-3802 (2011). [Download] H.C. Song, "Time reversal communication in a time-varying sparse channel," J. Acoust. Soc. Am. 130 (4), EL161-EL166 (2011). [Download] Steve Cho, H.C. Song, and W.S. Hodgkiss, "Successive interference cancellation for underwater acoustic communications," IEEE J. Oceanic Eng. 36 (4) , 490-501 (2011). [Download] H.C. Song, S. Cho, T. Kang, W.S. Hodgkiss, and J.R. Preston, "Long-range acoustic communication in deep water using a towed array," J. Acoust. Soc. Am. 129 (3), EL71-EL75 (2011). [Download]   2010 Taehyuk Kang, H.C. Song, W.S. Hodgkiss, and J.S. Kim, "Long-range multi-carrier acoustic communications based on iterative sparse channel estimation," J. Acoust. Soc. Am. 128 (6), EL372-EL377 (2010). [Download] H.C. Song, J.S. Kim, W.S. Hodgkiss, W.A. Kuperman, and M. Stevenson, "High-rate multiuser communications in shallow water," J. Acoust. Soc. Am. 128 (5), 2920-2925 (2010). [Download] H.C. Song, W.S. Hodgkiss, and P.A. van Walree, "Phase-coherent communications without explicit phase tracking (L)," J. Acoust. Soc. Am. 128 (3), 969-972 (2010). [Download] Aijun Song, Mohsen Badiey, H.C. Song, and W.S. Hodgkiss, "Impact of source depth on coherent underwater communications (L)," J. Acoust. Soc. Am. 128 (2), 555-558 (2010). [Download] M. Siderius, H.C. Song, P. Gerstoft, W.S. Hodgkiss, P. Hursky, and C. Harris, "Adaptive passive fathometer processing," J. Acoust. Soc. Am. 127 (4), 2193-2200 (2010). [Download] H.C. Song, J.S. Kim, W.S. Hodgkiss, and J.H. Joo, "Crosstalk mitigation using adaptive time reversal," J. Acoust. Soc. Am. 127 (2), EL19-EL22 (2010). [Download] K. Sabra, H.C. Song, and D. Dowling, "Ray-based blind deconvolution in ocean sound channel," J. Acoust. Soc. 127 (2), EL42-EL47 (2010). [Download]   2009 H.C. Song, W.S. Hodgkiss, W.A. Kuperman, T. Akal, and M. Stevenson, "High-rate synthetic aperture communications in shallow water," J. Acoust. Soc. Am. 126, 3057-3061 (2009). [Download] James Traer, Peter Gerstoft, H.C. Song, and W.S. Hodgkiss, "On the sign of the adaptive passive fathometer impulse response (L)," J. Acoust. Soc. Am. 126, 1657-1658 (2009). [Download] H.C. Song, W.S. Hodgkiss, W.A. Kuperman, T. Akal, and M. Stevenson, "High-frequency acoustic communications achieving high bandwidth efficiency (L)," J. Acoust. Soc. Am. 126, 561-563 (2009). [Download] H.C. Song and M. Dzieciuch, "Feasibility of global-scale synthetic aperture communications (L)," J. Acoust. Soc. Am. 125, 8-10 (2009). [Download] H.C. Song, W.A. Kuperman, and W.S. Hodgkiss, "Basin-scale time reversal communications," J. Acoust. Soc. Am. 125, 212-217 (2009). [Download]   2008 J.F. Sifferlen, H.C. Song, W.S. Hodgkiss, W.A. Kuperman, and M. Stevenson, "An iterative equalization and decoding approach for underwater acoustic communications," IEEE J. Oceanic Eng., 33 (2) , 182-197 (2008). [Download] Aijun Song, Mohsen Badiey, H.C. Song, W.S. Hodgkiss, Michael Porter and the KauaiEx Group, "Impact of ocean variability on coherent underwater acoustic communications during KauaiEx," J. Acoust. Soc. Am., 123 (2) , 856-865 (2008). [Download]   2007 H.C. Song, W.S. Hodgkiss, W.A. Kuperman, K. Sabra, T. Akal and M. Stevenson, "Passive reverberation nulling for target enhancement," J. Acoust. Soc. Am., 122 , 3296-3303 (2007). [Download] H.C. Song, W.S. Hodgkiss, W.A. Kuperman, T. Akal, and M. Stevenson, "Multiuser communications using passive time reversal" IEEE J. Oceanic Eng., 32(4) , 915-926 (2007). [Download] H.C. Song, W.S. Hodgkiss, and S.M. Kim, "Performance prediction of passive time reversal communications (L)," J. Acoust. Soc. Am. 122 , 2517-2518 (2007). [Download] H.C. Song and S.M. Kim, "Retrofocusing techniques in a waveguide for acoustic communications (L)," J. Acoust. Soc. Am. 121 , 3277-3279 (2007). [Download]   2006 W.J. Higley, Philippe Roux, and W.A. Kuperman, "Relationship between time reversal and linear equalization in digital communications (L),” J. Acoust. Soc. Am. 120 , 35-37 (2006). [Download] H.C. Song, W.S. Hodgkiss, W.A. Kuperman, M. Stevenson, and T. Akal, "Improvement of time reversal communications using adaptive channel equalizers,” IEEE J. Oceanic Eng. 31 , 487-496 (2006). [Download] H.C. Song, W.S. Hodgkiss, W.A. Kuperman, W. Higley, K. Raghukumar, T. Akal, and M. Stevenson, "Spatial diveristy in passive time reversal communications,” J. Acoust. Soc. Am. 120, 2067-2076 (2006). [Download] H.C. Song, P. Roux, W.S. Hodgkiss, W.A. Kuperman, T. Akal, and M. Stevenson, "Multiple-Input/Multiple-Output Coherent Time Reversal Communications in a Shallow Water Acoustic Channel," IEEE J. Oceanic Eng. 31 , 170-178 (2006). [Download] K.G. Sabra, P. Roux, H.C. Song, W.S. Hodgkiss, W.A. Kuperman, T. Akal, and M. Stevenson, "Experimental demonstration of iterative time-reversed reverberation focusing in a rough waveguide. Application to target detection," J. Acoust. Soc. Am. 120, 1305-1314 (2006). [Download]   2005 G. Edelmann, H.C. Song, S. Kim, W.S. Hodgkiss, W.A. Kuperman, and T. Akal, "Underwater acoustic communication using time reversal," IEEE J. Oceanic Eng. 30 , 852-864 (2005). [Download] W.J. Higley, P. Roux, W.A. Kuperman, W.S. Hodgkiss, H.C. Song, T. Akal, and M. Stevenson, "Synthetic aperture time-reversal communications in shallow water: Experimental demonstration at sea," J. Acoust. Soc. Am. 118, 2365-2372 (2005). [Download] H.C. Song, W.S. Hodgkiss, W.A. Kuperman, P. Roux, T. Akal, and M. Stevenson, "Experimental demonstration of adaptive reverberation nulling using time reversal," J. Acoust. Soc. Am. 118, 1381-1387 (2005). [Download]   2004 H.C. Song, S. Kim, W.S. Hodgkiss, and W.A. Kuperman, "Environmentally adaptive reverberation nulling using a time reversal mirror," J. Acoust. Soc. Am. 116, 762-768 (2004). [Download] P. Roux, W.A. Kuperman, W.S. Hodgkiss, H.C. Song, T. Akal, and M. Stevenson, "A nonreciprocal implementation of time reversal in the ocean," J. Acoust. Soc. Am. 116, 1009-1015 (2004). [Download] S. Kim, W.A. Kuperman, W.S. Hodgkiss, H.C. Song, G. Edelmann, and T. Akal, "Echo-to-Reverberation enhancement using a time reversal mirror," J. Acoust. Soc. Am. 115, 1525-1531 (2004). [Download]   2003 H.C. Song, W.A. Kuperman, W.S. Hodgkiss, T. Akal, and P. Guerrini, "Demonstration of a High Frequency Acoustic Barrier With a Time Reversal Mirror," IEEE J. Oceanic Eng. 28, 246-249 (2003). [Download] 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. Oceanic Eng. 28 , 250-261 (2003). [Download] S. Kim, W.A. Kuperman, W.S. Hodgkiss, H.C. Song, G. Edelmann, and T. Akal, "Robust time reversal focusing in the ocean," J. Acoust. Soc. Am. 114, 145-157 (2003). [Download]   2002 J. Kim, W.S. Hodgkiss, W.A. Kuperman, and H.C. Song, "Null broadening in a waveguide," J. Acoust. Soc. Am. 112, 189-197 (2002). [Download] J.F. Lingevitch, H.C. Song, and W.A. Kuperman, "Time reversed reverberation focusing in a waveguide," J. Acoust. Soc. Am. 111, 2609-2614 (2002). [Download] G. Edelmann, T. Akal, W.S. Hodgkiss, S. Kim, W.A. Kuperman, H.C. Song, "An initial demonstration underwater acoustic communication using time reversal," IEEE J. of Oceanic Eng. 27, 602-609 (2002). [Download]   2001 S. Kim, G. Edelmann, W.S. Hodgkiss, W.A. Kuperman, H.C. Song, and T. Akal, "Spatial resolution of time reversal array in shallow water," J. Acoust. Soc. Am. 110, 820-829 (2001). [Download] J. Kim, H.C. Song, and W.A. Kuperman, "Adaptive time reversal mirror," J. Acoust. Soc. Am. 109, 1817-1825 (2001). [Download]   2000 H.C. Song, P. Roux, and W.A. Kuperman, "Focal translation by frequency shift in free space," IEEE Trans. Ultrason. Ferroelect. Freq. Contr. 47, 687-695 (2000). [Download] P. Roux, H.C. Song, M.B. Porter, and W.A. Kuperman, "Application of the Parabolic Equation Method to Medical Ultrasonics," Wave Motion 31, 181-196 (2000). [Download] H.C. Song, W.A. Kuperman, and W.S. Hodgkiss, T. Akal, and C. Ferla, "Iterative time reversal in the ocean," J. Acoust. Soc. Am. 105, 3176-3184 (1999). [Download]   1999 W.S. Hodgkiss, H.C. Song, W.A. Kuperman, T. Akal, C. Ferla, and D.R. Jackson, "A long range and variable focus phase conjugation experiment in shallow water," J. Acoust. Soc. Am. 105, 1597-1604 (1999). [Download]   1998 H.C. Song, W.A. Kuperman, and W.S. Hodgkiss, "A time-reversal mirror with variable range focusing," J. Acoust. Soc. Am. 103, 3234-3240 (1998). [Download] W.A. Kuperman, W.S. Hodgkiss, H.C. Song, T. Akal, C. Ferla, and D.R. Jackson, "Phase conjugation in the ocean: Experimental demonstration of a time reversal mirror," J. Acoust. Soc. Am. 103, 25-40 (1998). [Download]

Conference Proceedings

A. Tesei, M. Stevenson, K. Sabra, P. Roux, T. Akal, and W.A. Kuperman, "Comparison of data processing methodologies for robust detection of small intruders crossing a high frequency, time-reversal-based acoustic barrier," New Concepts for Harbor Protection, Littoral Security, and Shallow-Water Acoustic Communications (TICA-05), Istanbul, Turkey, 4-8 July, 2005. [Download] H.C. Song, W.S. Hodgkiss, P. Roux, W.A. Kuperman, T. Akal, and M. Stevenson, "Coherent MIMO time reversal communications in shallow water," OCEANS'04, Kobe, Japan, 2004. H.C. Song, W.S. Hodgkiss, W.A. Kuperman, P. Roux, T. Akal, S. Kim, G. Edelmann, and M. Stevenson, "Echo-to-reverberation enhancement using a time reversal mirror," ECUA204, Delft, Netherlands, 2004. [Download] H.C. Song, P. Roux, T. Akal, G. Edelmann, W. Higley, W.S. Hodgkiss, W.A. Kuperman, K. Raghukumar, and M. Stevenson, "Time reversal ocean acoustic experiments at 3.5 kHz: Applications to active sonar and undersea communications," Hige Frequency Ocean Acoustics, La Jolla, CA, 2004. [Download] A. Tesei, H.C. Song, P. Guerrini, P. Roux, W.S. Hodgkiss, T. Akal, M. Stevenson, and W.A. Kuperman, "A high frequency active underwater acoustic barrier experiment using a time reversal mirror," Hige Frequency Ocean Acoustics, La Jolla, CA, 2004. [Download] W.A. Kuperman, S. Kim, G. Edelmann, W.S. Hodgkiss, H.C. Song, and T. Akal, "Group and phase speed analysis for predicting and mitigating the effects of fluctuations," Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance, edited by N.G. Pace and F.B. Jenson, 279-286, Lerici, Italy, 2002. [Download] H.C. Song, W.A. Kuperman, W.S. Hodgkiss, T. Akal, S. Kim, and G. Edelmann, "Recent results from ocean acoustic time reversal experiments," ECUA2002, Gdanski, Poland, 2002 [Download] W.S. Hodgkiss, J.S. Skinner, G.E. Edmonds, R.A. Harriss, and D.E. Ensberg, "A high frequency phase conjugation array," Oceans 2001, Hawaii, 2001. [Download] S. Kim, W.A. Kuperman, W.S. Hodgkiss, H.C. Song, G.F. Edelmann, T. Akal, R.P. Millane, D. Di Iorio, "A method of robust time reversal focusing in a fluctuating ocean," Oceans 2001, Hawaii, 2001. [Download] G.F. Edelmann, W.S. Hodgkiss, S. Kim, W.A. Kuperman, H.C. Song, and T. Akal, "Underwater acoustic communication using time reversal," Oceans 2001, Hawaii, 2001. [Download] H.C. Song, W.A. Kuperman, W.S. Hodgkiss, T. Akal, G. Edelmann, and S. Kim, "Ocean applications of time reversal acoustics," 17th International Congress of Acoustics, Rome, Italy, 2001. W.A. Kuperman, G. Edelmann, S. Kim, W.S. Hodgkiss, and H.C. Song, "Time reversal miror experiments in the ocean," Australian Acoustical Society (AAS), Sydney, Australia, 2000. [Download] T. Akal, G. Edelmann, S. Kim, W.S. Hodgkiss, W.A. Kuperman, and H. C. Song, "Low and high frequency ocean acoustic phase conjugation experiments," Fifth European Conference on Underwater Acoustics (ECUA), Lyon, France, 2000. [Download] M. Porter, P. Roux, H. Song, and W.A. Kuperman, "Tumor treatment by time-reversal acoustics," IEEE Proc. ICASSP-99, IV-2107, Phoenix, Arizona, 1999. [Download] W.A. Kuperman, H.C. Song, and P. Roux, "Focal translation by frequency shift with a time-reversal mirror," First International Symposium on Physics in Signal and Image Processing (PSIP), Paris, France, 1999. [Download] W.A. Kuperman, W.S. Hodgkiss, H.C. Song, P. Gerstoft, P. Roux, T. Akal, C. Ferla, and D.R. Jackson, "Ocean acoustic time-reversal mirror," 4th European Conference on Underwater Acoustics, Rome, Italy, 1998. [Download] Philippe Roux, M.B. Porter, H.C. Song, W.A. Kuperman, "Hyperthermia therapy using acoustic phase conjugation," 24th International Symposium on Acoustical Imaging, Sante Barbara, USA, 1998.">Download] [Download] Hee Chun Song, W.A. Kuperman, W.S. Hodgkiss, T. Akal, C. Ferla, and D.R. Jackson, "A time-reversal mirror with variable depth focusing," 16th International Congress on Acoustics (ICA), Seattle, 643-644, USA, 1998.