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- W3129820931 abstract "In recent years, underwater communications have seen a growing interest pushed by marine research, oceanography, marine commercial operations, offshore oil industry and defense applications. Generally, underwater communications employ audio signals which can propagate relatively far but are also significantly affected by Doppler distortions. In fact, physical properties of the water and spatial changes due to tides, currents and waves can cause channel variations or unwanted movements of the transmitter or receiver. This study shows how to compensate for the Doppler effect in transmission employing the JANUS standard, a popular modulation scheme for underwater communication. Differently form previous work, we use the pseudo-random symbols of the JANUS preamble to measure and compensate for Doppler distortions without changing the standard. The proposed method has been tested both on the Watermark simulator and real in-field experiments. Results show that the proposed technique allows to correctly receive over 90 % of the packets even with severe Doppler, compensating relative speeds up to 5 m/s." @default.
- W3129820931 created "2021-03-01" @default.
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- W3129820931 date "2020-12-01" @default.
- W3129820931 modified "2023-10-01" @default.
- W3129820931 title "Doppler Estimation and Correction for JANUS Underwater Communications" @default.
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- W3129820931 doi "https://doi.org/10.1109/globecom42002.2020.9348220" @default.
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