acoustic communications

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Research Efforts in Infrasound

  The Defense Systems Information Analysis Center (DSIAC) was asked to identify key contributors to Department of Defense research efforts in infrasound. Infrasound is classified as sound waves with frequencies lower than 20 hertz (Hz)…

An acoustic hailing device (AHD) being installed on a High Mobility Multipurpose Wheeled Vehicle (HMMWV) (Source: U.S. Army Picatinny Arsenal).

Research Efforts in Long-Range Acoustic Messaging

The Defense Systems Information Analysis Center (DSIAC) was asked to identify key players in U.S. Department of Defense research efforts in long-range (500–1,000 m) acoustic messaging. DSIAC searched open-source documents and the Defense Technical Information…

Research Efforts in Submarine Acoustic Communications

  The Defense Systems Information Analysis Center (DSIAC) was asked to identify key players in the U.S. Department of Defense (DoD) research efforts in acoustic submarine communications. DSIAC searched open-source documents and the Defense Technical…

Articles

Hydronalix to Develop Gateway Buoy for UUV Control and Communications

U.S. Navy unmanned underwater vehicle (UUV) experts needed a special buoy to house and control surveillance UUVs designed to determine the depth and underwater topography of rivers and inland waters. They found their solution from Hydronalix Inc. in Green Valley, Ariz. Officials of the Naval Air Warfare Center Aircraft Division in Lakehurst, N.J., announced plans