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Adaptive Doppler compensation for coherent acoustic communication

Lookup NU author(s): Professor Bayan Sharif, Professor Jeffrey Neasham, Emeritus Professor Oliver Hinton, Alan Adams, Dr Jonathan Davies


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Doppler shift tracking and compensation based on block and adaptive estimation methods are presented. These methods enable robust high data-rate acoustic communication between moving platforms such as autonomous underwater vehicles. The proposed schemes are incorporated within a wideband beamforming array with decision feedback equalization. The block-based Doppler compensator is used as a pre-processor to the beamforming structure, whereas the adaptive compensator and the beamforming structure are jointly updated. The two methods employ multirate sampling and linear interpolation to compensate for the Doppler shift. Simulation and experimental sea-trial results are reported for both block and adaptive methods, which demonstrate successful communication at 16 kbit/s with a transmitting platform moving at up to ±2.6 m/s.

Publication metadata

Author(s): Adams AE; Hinton OR; Sharif BS; Neasham J; Davies J

Publication type: Article

Publication status: Published

Journal: IEE Proceedings: Radar, Sonar and Navigation

Year: 2000

Volume: 147

Issue: 5

Pages: 239-246

ISSN (print): 1350-2395

ISSN (electronic): 1359-7086

Publisher: Institution of Electronic and Electrical Engineers


DOI: 10.1049/ip-rsn:20000665


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