BRAZILIAN NAVY PAULO MOREIRA ADMIRAL SEA STUDIES INSTITUTE (IEAPM) - PowerPoint PPT Presentation

BRAZILIAN NAVY PAULO MOREIRA ADMIRAL SEA STUDIES INSTITUTE (IEAPM) UNDERWATER ACOUSTIC GROUP Alexandre Guarino Telecommunications Engineering, B.S. Ocean Engineering, M.Sc.

 MISSION - to design, develop and execute scientific and technological research in Underwater Acoustics.  RESEARCH ACTIVITIES - underwater communication, harbor protection, propagation models, bioacoustics. diagrama de raios

 UNDERWATER COMMUNICATIONS (channel) 1 1 0 1 1 1 1 0 0 0 0 0 1 1 0 1 • multipath propagation delay spread ISI error • frequency selectivity • fading • variable channel • low bps throughput

 MY GOALS: • Source coding - study a good way to lower the message size, do to the low intrinsic channel throughput • Channel coding - study thecniques to deal with the errors caused by the channel characteristics • study possible ways to better deal with the delay spread