Results 91 to 100 of about 21,410 (207)

Dam Submergence Flows: An Environmental Flow Prescription Designed to Aid Migratory Fish Passage

open access: yesRiver Research and Applications, Volume 42, Issue 1, Page 19-29, January 2026.
ABSTRACT As part of a holistic ecosystem‐focused set of unified flow prescriptions, natural spring flood events were enhanced with releases from an upstream reservoir on the Cape Fear River in North Carolina (USA) to submerge a series of low‐use, low‐head lock‐and‐dam structures for anadromous fish to move upstream.
Aaron J. Bunch   +6 more
wiley   +1 more source

Effective SNR Mapping and Link Adaptation Strategy for Next-Generation Underwater Acoustic Communications Networks: A Cross-Layer Approach

open access: yesIEEE Access, 2019
Interest in the study of next-generation underwater sensor networks for ocean investigation has increased owing to developing concerns over its utilization in areas, such as oceanography, commercial operations in maritime areas, and military surveillance.
Ishtiaq Ahmad, Kyunghi Chang
doaj   +1 more source

Acoustic-radio cooperative marine information network

open access: yesDianxin kexue, 2018
The transmissions of ocean information have to cross the water-air interface.In this case,the information transmission network architecture requires the efficient integration of the underwater acoustic network and the radio network.However,the ...
Quansheng GUAN   +4 more
doaj   +2 more sources

A Novel Fractional Fourier Transform-Based ASK-OFDM System for Underwater Acoustic Communications

open access: yesApplied Sciences, 2017
A key research area in wireless transmission is underwater communications. It has a vital role in applications such as underwater sensor networks (UWSNs) and disaster detection.
Rami Ashri   +2 more
doaj   +1 more source

Robust Interference Cancellation of Chirp and CW Signals for Underwater Acoustics Applications

open access: yesIEEE Access, 2018
We focus on mitigating strong interferences that can jam underwater acoustics emissions aimed for detection or communications. We consider two types of interferences: narrowband like continuous waveform and wideband like chirp. Both the types are assumed
Roee Diamant
doaj   +1 more source

On the Design of Noncoherent Acoustic Underwater Communication.

open access: yes, 2023
The underwater domain is an environment hostile to humans due to the hydrostatic pressure that rapidly increases with water depth, which has led to underwater robotics becoming an emerging technological field with many commercial-, environmental-, and security-related applications.
openaire   +2 more sources

Cooperative robotic networks for underwater surveillance: an overview

open access: yesIET Radar, Sonar & Navigation, 2017
Underwater surveillance has traditionally been carried out by means of surface and undersea manned vessels equipped with advanced sensor systems. This approach is often costly and manpower intensive. Marine robotics is an emerging technological area that
Gabriele Ferri*   +9 more
doaj   +1 more source

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