Results 31 to 40 of about 282,410 (285)

Oceans of Tomorrow sensor interoperability for in-situ ocean monitoring [PDF]

, 2016
The Oceans of Tomorrow (OoT) projects, funded by the European Commission’s FP7 program, are developing a new generation of sensors supporting physical, biogeochemical and biological oceanographic monitoring. The sensors range from acoustic to optical
Jirka, Simon, Pearlman, Jay S, Río Fernandez, Joaquín del   +2 more
core   +1 more source

Analysis and Modeling of Timbre Perception Features in Musical Sounds

Applied Sciences, 2020
A novel technique is proposed for the analysis and modeling of timbre perception features, including a new terminology system for evaluating timbre in musical instruments.
Wei Jiang, Jingyu Liu, Xiaoyi Zhang, Shuang Wang, Yujian Jiang   +4 more
doaj   +1 more source

High-speed acoustic communication by multiplexing orbital angular momentum. [PDF]

Proc Natl Acad Sci U S A, 2017
Shi C, Dubois M, Wang Y, Zhang X.
europepmc   +2 more sources

Acoustic Integrity Codes: Secure Device Pairing Using Short-Range Acoustic Communication

, 2020
Secure Device Pairing (SDP) relies on an out-of-band channel to authenticate devices. This requires a common hardware interface, which limits the use of existing SDP systems.
Balfanz D., Foundation Kotlin, Gollakota S., Mayrhofer R., Mayrhofer R., Roy N., Six J.   +6 more
core   +1 more source

Node Energy Consumption Balanced Multi-Hop Transmission for Underwater Acoustic Sensor Networks Based on Clustering Algorithm

IEEE Access, 2020
With the advancement and implementation of marine strategies in various countries, it is of great significance to collect marine data by using underwater acoustic sensor networks (UWA-SNs).
Meihuang Wang, Yougan Chen, Xiang Sun, Fanggui Xiao, Xiaomei Xu   +4 more
doaj   +1 more source

Covert underwater acoustic communications

The Journal of the Acoustical Society of America, 2010
Low probability of detection (LPD) communications are conducted at a low received signal-to-noise ratio (SNR) to deter eavesdroppers to sense the presence of the transmitted signal. Successful detection at intended receiver heavily relies on the processing gain achieved by employing the direct-sequence spread-spectrum (DSSS) technique.
Jun Ling, Hao He, Jian Li, William Roberts, Petre Stoica   +4 more
openaire   +2 more sources

MF-HER: Marine Mammal-Friendly Based High Spectral-Efficient Routing for Underwater Acoustic Sensor Networks

IEEE Access, 2020
In real ocean environments, artificial acoustic and natural acoustic systems are coexisted to share scarce spectrum resources. In this paper, we propose a marine mammals-friendly based high spectral-efficient routing (MF-HER) protocol to improve spectrum
Yougan Chen, Xinrui Zhang, Xiang Sun, Yi Tao, Xiaomei Xu   +4 more
doaj   +1 more source

Estimating the active space of male koala bellows: propagation of cues to size and identity in a Eucalyptus forest [PDF]

, 2012
Examining how increasing distance affects the information content of vocal signals is fundamental for determining the active space of a given species’ vocal communication system.
Benjamin D. Charlton, David Reby, Jacqui Brumm, Sean A. Rands, W. Tecumseh Fitch, William A. H. Ellis   +5 more
core   +3 more sources

Scene-Driven Semantic Alignment for Generative Communication in Underwater Images

IET Signal Processing
Underwater images serve as one of the most intuitive media for human perception of underwater environments. However, the limited bandwidth and susceptibility to noise in underwater acoustic (UWA) channels pose significant challenges for traditional image
Yuetong Li, Zhenyu Jia, Yuyang Peng, Yi Zhu, Fei Yuan   +4 more
doaj   +1 more source

A Fish-Counting Method Using Fusion of Spatial Sensing and Temporal Information

Remote Sensing
In modern aquaculture, accurate and efficient fish counting is crucial for the optimization of resource management and the enhancement of production profitability.
Zhaozhi Wu, Xinze Zheng, Yi Zhu, Longhao Wu, Congcong Li, Qiang Tu, Fei Yuan   +6 more
doaj   +1 more source