Dr. Geoffrey F. Edelmann

Section Head, Acoustic Networking and Signal Processing U. S. Naval Research Laboratory4555 Overlook Ave SW, Code 7162Washington, D.C. 20375-5350T: 202.404.4841F: 202.404.7732E: edelmann@nrl.navy.mil

Articles

Z. Liu, L. Emokpae, J. Schindall and G.F. Edelmann, “Experimental investigation of acoustic channel reciprocity in shallow water.” The Journal of the Acoustical Society of America 146, 2763 (2019).
J. Ramirez Jr., J.S. Rogers and G.F. Edelmann, “A performance metric for screen selection with the acoustic single pixel imager,” J. Acoust. Soc. Am. 143, 3829 (2018).
L. Emokpae, S.E. Freeman, G.F. Edelmann, and D.M. Fromm “Highly Directional Multipath Free High Data-Rate Communications With a Reconfigurable Modem,” IEEE Journal of Oceanic Engineering (Volume: PP, Issue: 99 p 1-11) 2018.
S.E. Freeman, L. Emokpae, J.S. Rogers, and G.F. Edelmann, “Beamforming using chip-scale atomic clocks in a controlled environment,” J. Acoust. Soc. Am., 143, EL74 (2018) .
G.F. Edelmann, D.M. Fromm, and J.S. Rogers, “(U) Demonstration of compressive beamforming with a towed array,” J. of Underwater Acoustics (CONFIDENTIAL) (2015).
S.E Freeman, L. Emokpae , M. Nicholas , G.F. Edelmann, “A highly directional transducer for multipath mitigation in high-frequency underwater acoustic communications,” J. Acoust. Soc. Am., 138 (2), EL151-EL154 (2015). (0.8 Mb)
C.F. Gaumond and G.F. Edelmann, " Sparse array design using statistical restricted isometry property," J. Acoust. Soc. Am., 134 (2), EL191-EL197 (2013). (2.2 Mb)
A.G. Zajić and G.F. Edelmann, "Feasibility Study of Underwater Acoustic Communications Between Buried and Bottom-Mounted Sensor Network Nodes,"IEEE Journal of Oceanic Engineering, vol.PP, no.99, pp.1, 2012 0 doi: 10.1109/JOE.2012.2212832 (1.2 Mb)
Geoffrey F. Edelmann and Charles F. Gaumond, "Beamforming using compressive sensing," J. Acoust. Soc. Am., 130 (4), EL232 October (2011). (2.6 Mb)
G.F. Edelmann, J.F. Lingevitch, C.F. Gaumond, D.M. Fromm, and D.C. Calvo, "Comparison of a subrank to a full-rank time-reversal operator in a dynamic ocean," J. Acoust. Soc. Am., 122(5), 2706-2714 (2007). (0.5 Mb)
C.F. Gaumond, D.M. Fromm, J.F. Lingevitch, R. Menis, G.F. Edelmann, D.C. Calvo, and E. Kim, "Demonstration at sea of the decomposition-of-the-time-reversal-operator technique," J. Acoust. Soc. Am., 119(2), 976-990 (2006). (1.1 Mb)
G.F. Edelmann, H.C. Song, S. Kim, W.S. Hodgkiss, W.A. Kuperman, and T. Akal, "Underwater acoustic communications using time reversal," IEEE J. Ocean. Eng., 30, 852-864 (2005). (1.5 Mb)
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). (2.2 Mb)
S. Kim, W.A. Kuperman, W.S. Hodgkiss, H.C. Song, and G.F. Edelmann, "Robust time reversal focusing in the ocean," J. Acoust. Soc. Am. 114, 145-157 (2003). (0.6 Mb)
G.F. Edelmann, T. Akal, W.S. Hodgkiss, S. Kim, W.A. Kuperman, and H.C. Song, "An initial demonstration of underwater acoustic communications using time reversal," IEEE J. Ocean. Eng., 27, 602-609 (2002). (0.7 Mb)
S. Kim, G.F. 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). (0.7 Mb)

Conference Proceedings

L. Emokpae, Z. Liu, G.F. Edelmann, and M. Younis, “A Cross-Stack QoS Routing Approach for Underwater Acoustic Sensor Networks,” IEEE UCOMMS’18 (2018).
S. Freeman, L. Emokpae, and G.F. Edelmann, “High-frequency, highly directional short-range underwater acoustic communications,” In the Proc of MTS/IEEE OCEANS’15, (2015).
R. Ramamurti, J.D. Geder, A. Thangawng, and G.F. Edelmann, "Computational Studies of Pressure Sensor Placement for a Fish-Inspired UUV," AIAA Atmospheric Flight Mechanics Conference(2014). (2.3 Mb)
G.F. Edelmann, I.M. Rooney, and C.F. Gaumond, "Numerical simulations of compressive beamforming with a vertical line array in the deep ocean," POMA 19, 070088 (2013). (2.5 Mb)
C.F. Gaumond and G.F. Edelmann, "Application of statistical reduced isometry property to design of line arrays for compressive beamforming," POMA 19, 070083 (2013). (0.5 Mb)
C.F. Gaumond and G.F. Edelmann, "Application of l1 inversion to underwater acoustic signal processing," PROCEEDINGS OF SYMPOL-2011. (0.3 Mb)
G.F. Edelmann and C.F. Gaumond, “Underwater Applications of Compressive Sampling,” TTCP, 2010.
G.F. Edelmann, "An overview of time-reversal acoustic communications," TICA'05, (2005). (0.4 Mb)
D.M. Fromm, C.F. Gaumond, J.F. Lingevitch, R. Menis, G.F. Edelmann, D.C. Calvo, and E. Kim, "The effect of coherence and noise on the decomposition of the time reversal operator," OCEANS '05. MTS/IEEE TECHNO-OCEAN '05, (2005). (2.5 Mb)
D.C. Calvo C.F. Gaumond, D.M. Fromm, R. Menis, J.F. Lingevitch, G.F. Edelmann, and E. Kim, "Detection enhancement using multiple time-reversed guide sources in shallow water," OCEANS '05. MTS/IEEE TECHNO-OCEAN '05, (2005). (1.5 Mb)
C.F. Gaumond, D.M. Fromm, J.F. Lingevitch, R. Menis, G.F. Edelmann, D.C. Calvo, and E. Kim, "Application of DORT to active sonar," OCEANS '04. MTS/IEEE TECHNO-OCEAN '04, 4, 2230 - 2235 (2004). (0.8 Mb)
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," European Conference on Underwater Acoustics, Delft, Netherlands, (2004). (0.5 Mb)
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). (1.5 Mb)
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). (0.3 Mb)
H.C. Song, W.A. Kuperman, W.S. Hodgkiss, T. Akal, S. Kim, and G.F. Edelmann, "Recent results from ocean acoustic time reversal experiments," 6th European Conference on Underwater Acoustics, Gdanski, Poland, (2002). (0.7 Mb)
G.F. Edelmann, T. Akal, W.S. Hodgkiss, S. Kim, W.A. Kuperman, and H.C. Song, "Underwater acoustic communications using time reversal," Oceans Hawaii MTS/IEEE Conference and Exhibition, Vol 4, 2231-2235 (2001). (0.9 Mb)
S. Kim, W.A. Kuperman, W.S. Hodgkiss, H.C. Song, G.F. Edelmann, and T. Akal, R.P. Millane, and D. Di Iorio, "A method for robust time-reversal focusing in a fluctuating Ocean," Oceans Hawaii MTS/IEEE Conference and Exhibition, Vol 2, 793-797 (2001). (0.9 Mb)
H.C. Song, W.A. Kuperman, W.S. Hodgkiss, T. Akal, G.F. Edelmann, and S. Kim, "Ocean applications of time reversal acoustics," 17th International Congress of Acoustics, Rome, Italy (2001).
W.A. Kuperman, G.F. Edelmann, S. Kim, W.S. Hodgkiss, and H.C. Song, "Time reversal mirror experiments in the ocean," Australian Acoustical Society (AAS), Sydney (2000). (2.4 Mb)
T. Akal, G.F. Edelmann, S. Kim, W.S. Hodgkiss, W.A. Kuperman and H.C. Song, "Low and high frequency ocean acoustic phase conjugation experiments," Proceedings of the Sixth European Conference of Underwater Acoustics, pp. 493-498 (2000). (0.7 Mb)

Popular Press

"'Time reversal' allows wireless broadband under the sea," New Scientist, 25 June (2008). Kurt Kleiner (0.05 Mb)
"Potential applications of ocean acoustic time-reversal mirrors," Sea Technology 44, No.11, 25-29 November (2003). (0.3 Mb)
G.F. Edelmann, "Ocean Watch: Time reversal takes your words and plays them back at you," The San Diego Union-Tribune, March 27 (2002). (0.7 Mb)
"Secure submarine communications," Ocean News & Technology, 30 December (2001).
Ian Sample, "Reversed broadcasts key to underwater secrecy," New Scientist, 22 October (2001). (0.7 Mb)

Technical Reports

K.B. Yoo, G.F. Edelmann, “Decoding multipath and Doppler corrupted direct-sequence spread spectrum signals in underwater acoustic communication.” NRL Formal Report NRL/FR/7162--20-10,384 (2020).
G.F. Edelmann and C.F. Gaumond, "Underwater Applications of Compressive Sensing," 2011 NRL Review, 193-194. (14.2 Mb)
D.P. Drob, J.F. Lingevitch, and G.F. Edelmann, "Infrasound Signal Propagation Modeling," FY07 NRL DoD High Performance Computing Modernization Program Annual Reports, NRL/PU/5590--08-510, 72-72. (2.5 Mb)
D.P. Drob, J.F. Lingevitch, and G.F. Edelmann, "Infrasound Signal Propagation Modeling," FY06 NRL DoD High Performance Computing Modernization Program Annual Reports, NRL/PU/5590--07-503, 68-69. (3.4 Mb)
G.F. Edelmann, T. Akal, W.S. Hodgkiss, S. Kim, W.A. Kuperman, H.C. Song, and P. Guerrini, "Underwater acoustic communication using time-reversal self-equalization," NATO SACLANT Centre Memorandum SACLANTCEN-SR-341, 1-28 (16 Jan 2002). (5.5 Mb)

Thesis

G.F. Edelmann, "Underwater communication using time reversal," Ph.D. Thesis, University of California, San Diego (2003). (17 Mb)