Title :
Doppler compensation for underwater acoustic communications
Author :
Sharif, Bayan S. ; Neasham, Jeff ; Hinton, Oliver R. ; Adams, Alan E.
Author_Institution :
Dept. of Electr. & Electron. Eng., Newcastle upon Tyne Univ., UK
Abstract :
Doppler shift in underwater acoustic communications presents a major challenge to modern designers. Carrier tracking and symbol synchronisation are severely affected by Doppler shift induced by relative motion of the transmitting and receiving structures. This paper presents an efficient Doppler compensation system that can be used as a generic pre-processor to conventional equalisation and beamforming structures. The rationale behind the choice of the design parameters is reported as well as the experimental system performance based on results from trials in the North Sea
Keywords :
Doppler shift; acoustic receivers; acoustic signal processing; motion compensation; synchronisation; underwater acoustic communication; Doppler compensation; Doppler shift; carrier tracking; generic pre-processor; relative motion; symbol synchronisation; underwater acoustic communications; Doppler shift; Frequency synchronization; Modems; Phase locked loops; Remotely operated vehicles; Signal processing; Underwater acoustics; Underwater communication; Underwater tracking; Wideband;
Conference_Titel :
OCEANS '99 MTS/IEEE. Riding the Crest into the 21st Century
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5628-4
DOI :
10.1109/OCEANS.1999.799734
