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SiPLAB products:

AOB2 at sea

Acoustic Oceanographic Buoy (AOB)

The AOB is an integrated system composed of a piece of hardware to be deployed at sea (from a surface ship or aircraft) and a software utility that interfaces with the user at a remote location on real time. The AO-Buoy capabilities are as follows:

  • easy to handle system tending to the size, weight and autonomy of a standard sonobuoy
  • several depth modulable wideband acoustic and non-acoustic (thermistors, depth sensors, ...) channels
  • on the buoy GPS for time and location reference
  • on the buoy pre-processing for data reduction and analysis
  • fast remote wireless communications for data online monitoring and processing
  • online tracking of AO-Buoy position, status and data being acquired
  • real time data processing with the following scopes: water column temperature profiling via tomographic inversion, geo-acoustic bottom inversion, sound source detection, localization and tracking and underwater communications in the band up to 16 kHz.
Applications sought are: rapid environmental assessment (REA), bottom profiling and exploration, rapid submarine detection, localization and identification and communications with submerged targets (benthic labs, AUV's, subs, etc...).

Top Articles:

JMS logo Bayesian acoustic prediction assimilating oceanographic and acoustically inverted data, J. of Marine Systems, 78, Sup.1, p.S349-S358, Nov. 2009 [PDF]

ASA logo Adaptive spatial combining for passive time-reversed communications, J. Acoust. Soc. America, 124(2), p.1038-1053, Aug. 2008 [PDF]

JMS logo Environmental and Acoustic Assessment: the AOB concept J. of Marine Systems, vol. 69, p.114-125, Jan. 2008[PDF].

ASA logo Environmental Inversion Using High-Resolution Matched-Field Processing,
JASA, 122(6), p.3391-3404, Dec. 2007 [PDF]

Related Readings:

REA concept Acoustic REA
New integrated and easy to use tools for ocean observation, data retrieval and information sharing. Reconfigurable sensor networks both for military and civilian applications..[more].

UAB port protection system Harbor protection
on going projects, developed equipment, technological tools, sea trials and theoretical results [more].