Results 111 to 120 of about 5,103,302 (259)
Integrative Zoology, EarlyView.The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic +10 more
wiley +1 more source
Taking LoRa for a dive : CSS for low-power acoustic underwater communication
, 2022 Long Range (LoRa) is a rising technology for low-power over-water wide area networks. In this paper, we modify the physical layer (PHY) of the LoRa communication standard for use in acoustic underwater communication.
Renner, Bernd-Christian +1 more
core +1 more source
Underwater acoustic communication
This review article provides a comprehensive analysis of recent advancements in underwater acoustic communication (UWA) through Orthogonal Frequency Division Multiplexing (OFDM) techniques. The study synthesizes findings from three major areas: pilot-assisted OFDM for channel estimation, subcarrier power modulation for data rate improvement, and ...
openaire +2 more sources
Vector Sensor Steering-Dependent Performance in an Underwater Acoustic Communication Field Experiment. [PDF]
Sensors (Basel), 2022 Bozzi FA, Jesus SM.
europepmc +1 more source
Active acoustic time-reversal for underwater acoustic barriers [PDF]
, 2007 This work addresses the possibility of using successive transmissions of time delayed channel probe pulses between two closely spaced acoustic sensor arrays for forming an acoustic barrier for target detection in shallow water.
Jesus, S. M., Sérgio M. Jesus
core +1 more source
Integrative Zoology, EarlyView.Spatiotemporal distribution of odontocete cetaceans within China's Jiushan Archipelago National Nature Reserve was investigated. Fishing vessels significantly reduced both cetacean acoustic detections and feeding activity, whereas gillnets selectively suppressed cetacean feeding behavior without affecting overall cetacean detection rates.
Yifan Liu +10 more
wiley +1 more source
Experiment Research on Underwater Acoustic Sensor Network
, 2007 Experiment is the effective research means. In this paper, an experiment platform for underwater acoustic sensor networks(UASNs) is designed and developed, which serves as the testing and evaluating system of UASNs and is convenient, flexible and ...
Zhang HL(张华良) +5 more
core
A validated 3D point‐cloud analysis workflow for the creation of seagrass canopy height models
Methods in Ecology and Evolution, EarlyView.Abstract Seagrasses support highly productive ecosystems in both temperate and tropical waters and provide essential ecosystem services. Despite their importance, the vertical structure of seagrasses (i.e. the canopy) remains poorly characterised at the microscale, even though it is a strong predictor of ecological processes that influence both ...
Daniele Ventura
wiley +1 more source
Influence of Temporal and Spatial Fluctuations of the Shallow Sea Acoustic Field on Underwater Acoustic Communication. [PDF]
Sensors (Basel), 2022 Lv Z +6 more
europepmc +1 more source
A simulator for swarm AUVs acoustic communication networking
, 2016 This paper presents a simulator for swarm operations designed to verify algorithms for a swarm of autonomous underwater robots (AUVs), specifically for constructing an underwater communication network with AUVs carrying acoustic communication devices ...
Li GN(李冠男) +4 more
core