Results 91 to 100 of about 3,994 (304)

Short Range Underwater Optical Communication Links

, 2005
The future tactical ocean environment will be increasingly complicated. In addition to traditional communication links there will be a proliferation of unmanned vehicles in space, in the air, on the surface, and underwater. To effectively utilize these
Chancey, Mark Alan
core  

Optimization and Modeling of Optical Emission Spatial Coverage from Underwater Multi-Faceted Optical Base Stations

Compared with point-to-point wireless optical communication systems, multi-faceted Optical Base Stations (OBSs) offer the advantages of supporting multi-user access and achieving omnidirectional dynamic communication.
Chunbo Ma, Jun Ao, Xu Tian, Junjie Shi, Hanjun Guo   +4 more
core   +1 more source

A Soft Robotic Jellyfish with Decoupled Actuators for Agile 3D Locomotion

Advanced Intelligent Systems, EarlyView.
This study presents a soft robotic jellyfish featuring a functionally decoupled actuation architecture. By separating propulsion, steering, and vertical regulation into independent modules, the robot overcomes conventional coupled‐motion limitations. Utilizing a passive‐valve‐based differential drag strategy and lateral water jets, it achieves agile 3D
Zhuoheng Li, Ze Huang, Salvador Pané, Josep Puigmartí‐Luis, Jiwan Kim, Ji‐Hun Bae, Bumjin Jang   +6 more
wiley   +1 more source

Research on the Optical Receiving Performance of Underwater Wireless Optical Communication System Based on Fresnel Lens

Photonics
In response to the practical demands of high rate, long distance, low cost and miniaturized equipment for underwater wireless communication, an underwater wireless optical communication experimental system with Fresnel lenses as optical receiving ...
Ya Zhao, Shixiang Hong, Zhanqi Zhang, Xiaoxuan Zhu, Peng Zhang   +4 more
doaj   +1 more source

Non-line-of-sight scattering channel modeling for underwater optical wireless communication

, 2015
The characteristics of the non-line-of-sight (NLOS) scattering channel for underwater optical wireless communication in the optical transmission window (wavelength of 400nm-600nm) are studied.
Xu ZY(徐正元), Yu JC(俞建成), Liu, Weihao, Zou, Difan   +3 more
core  

A Two‐Stage Characterization Pipeline and Open‐Source Framework for Reproducible Tactile Sensing

Advanced Intelligent Systems, EarlyView.
The same soft tactile sensor returns different numbers when embodied in different robots. This is an Embodiment Gap that no shared framework currently captures transparently. A two‐stage characterization pipeline, paired with a FAIR open‐source digital datasheet, decouples intrinsic sensor behavior from embodiment effects and condenses cross‐laboratory
Matteo Lo Preti, Weng Buxiu, Petr Trunin, Muhammad Sunny Nazeer, Lucia Beccai, Perla Maiolino, Cecilia Laschi   +6 more
wiley   +1 more source

OptoCOMM: Introducing a new optical underwater wireless communication modem

, 2016
OptoCOMM aims at demonstrating the potential, at physical level, of a communication facility for the SUNRISE platform constituted by an Optical Underwater Wireless Communication (OUWC) module with target performance of 10 Mb/s transmission rate at 10 ...
CAITI, ANDREA, Sturniolo, Alessandro, Andrea Caiti, Giuseppe Conte, GRECHI, SIMONE, Scaradozzi, David, Nuti, Roger, Simone Grechi, Costa, Daniele, Cossu, Giulio, Daniele Costa, Conte, Giuseppe, Roger Nuti, Alessandro Sturniolo, Ciaramella, Ernesto, Giulio Cossu, David Scaradozzi, Ernesto Ciaramella   +17 more
core   +1 more source

Guiding and Manipulating Light Fields in Microstructured Liquid Crystals

Advanced Physics Research, EarlyView.
This review summarizes recent advances in guided‐wave optics enabled by microstructured liquid crystal (LC) devices, covering their fundamental material properties, key degree of freedom for dynamic light field manipulations. The advances of linear guided‐wave optics, nonlinear‐optics with spatial optical solitons, and microlasers in LC‐based devices ...
Shan‐shan Chang, Yong‐shuai Li, Jin‐hui Chen   +2 more
wiley   +1 more source

Functional models from limited data: A parametric and multimodal approach to anatomy and 3D kinematics of feeding in basking sharks (Cetorhinus maximus)

The Anatomical Record, EarlyView.
Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li, Mike Schindler, Martha Paskin, Venkata A. Surapaneni, Elliott Scott, Sabine Hauert, Nicholas Payne, David E. Cade, Jeremy A. Goldbogen, Frederik H. Mollen, Daniel Baum, Sean Hanna, Mason N. Dean   +12 more
wiley   +1 more source

High-speed underwater wireless optical communication: Potential, challenges, and preliminary results

, 2017
Traditional underwater communication systems rely on acoustic modems due their reliability and long range. However their limited data rates, lead to the exploration of alternative techniques.
Alouini, Mohamed-Slim, Mohamed-Slim Alouini   +1 more
core   +1 more source