Results 171 to 180 of about 32,987 (227)

Robust and efficient image transmission in power-constrained underwater visible light communication systems using neural architecture search. [PDF]

Sci Rep
Jin Q, Deng B, Fu HY, Khan FN.
europepmc   +1 more source

Roars, Rumbles, and Resonance: A Systematic Review and Meta-Analysis of Crocodylian Acoustic Signals. [PDF]

Ecol Evol
Flores SA, Dwyer RG, Parsons S, Potvin DA.   +3 more
europepmc   +1 more source

Characterization and Performance Analysis of Underwater Optical Time and Frequency Dissemination Link Based on Monte Carlo Simulation and Experimental Demonstration. [PDF]

Sensors (Basel)
Yuan Y, Liu H, Wang Z, Zhang H, Li X, Cui J, Yang Y.   +6 more
europepmc   +1 more source

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Acoustic triboelectric nanogenerator for underwater acoustic communication

Nano Energy
Huilin Ge, Shuqi Zhao, Baoying Dai, Shaoqiang Chen, Yuchen Pan, Youguo Lu, Yannan Xie, Chunxiao Jiang   +7 more
openaire   +3 more sources

Underwater acoustic communications

Proceedings of Electro/International 1995, 2002
In recent years, underwater acoustic (UWA) communications have received much attention as their applications are beginning to shift from military towards commercial. UWA communications are made difficult by the combined effect of multipath propagation and high temporal and spatial variability of the channel conditions.
openaire   +2 more sources

Asynchronous multiuser underwater acoustic communications (L)

The Journal of the Acoustical Society of America, 2012
An asynchronous multiuser system is proposed to support multiple-access underwater communications without the use of code-division multiple-access or a feedback channel. The rich multipath channels experienced by spatially separated users will be sufficient to ensure separation of collided packets at the base station. The iterative receiver will employ
S E, Cho, H C, Song, W S, Hodgkiss
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Underwater Acoustic Communications Using Time Reversal

IEEE Journal of Oceanic Engineering, 2002
Time reversal, or phase-conjugation, refocuses energy back to a probe source location despite the complexity of the propagation channel. A probe source pulse is transmitted and a complicated multipath signal is measured by an array of source/receiver elements. The signal is time reversed and retransmitted into the ocean.
G.F. Edelmann, W.S. Hodgkiss, S. Kim, W.A. Kuperman, H.C. Song, T. Akal   +5 more
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Bidirectional equalization for underwater acoustic communication

The Journal of the Acoustical Society of America, 2012
The bidirectional decision feedback equalizer (BiDFE) that combines the outputs of a conventional decision feedback equalizer (DFE) and backward DFE can improve the performance of the conventional DFE by up to 1–2 dB based on simulations. In this letter, the BiDFE concept is extended to multichannel time reversal communications involving a DFE as a ...
openaire   +2 more sources