Title :
Spatio-temporal processing of coherent acoustic communications data in shallow water
Author :
Beaujean, Pierre-Philippe J. ; LeBlanc, Lester R.
Author_Institution :
Dept. of Ocean Eng., Florida Atlantic Univ., Boca Raton, FL, USA
Abstract :
Achieving reliable underwater communications in shallow water is a difficult task due to the random time varying nature of multipath propagation. This paper describes a novel coherent space-time processing method for acoustic communications in a marginally overspread channel operating between 16 kHz and 32 kHz. The FAU-MillsCross, a 64-channel high performance acoustic receiver, is our real-time development platform. Using the FAU general purpose acoustic modem as a moving source, reliable communication is achieved up to 32000 bps at 3200 meters range in shallow and very shallow water
Keywords :
acoustic signal processing; multipath channels; telecommunication network reliability; underwater acoustic communication; FAU-MillsCross; coherent acoustic communications data; coherent space-time processing method; reliable underwater communications; spatio-temporal processing; Acoustic beams; Bit error rate; Chirp; Decision feedback equalizers; Decoding; Frequency; Modems; Underwater acoustics; Underwater communication; Water resources;
Conference_Titel :
OCEANS 2000 MTS/IEEE Conference and Exhibition
Conference_Location :
Providence, RI
Print_ISBN :
0-7803-6551-8
DOI :
10.1109/OCEANS.2000.882173
