Results 91 to 100 of about 7,248,704 (282)

Using a GPS-Aided Inertial System for Coarse-Pointing of Free-Space Optical Communication Terminals [PDF]

, 2006
In the Capanina project, it has been shown that it is possible to use solely GPS positions for coarse-pointing of a stratospheric free-space optical communication terminal.
Bernhard Epple, Epple, Bernhard
core   +1 more source

On‐Skin Wireless Vibratory Interfaces by Stretchable Multilayer Circuits

Advanced Materials Interfaces, EarlyView.
A battery‐free, stretchable wireless vibratory interface is developed through printable liquid‐metal‐based multilayer circuits. The soft device integrates wireless power reception, signal modulation, and vibrotactile actuation within a compliant platform.
Jiawei Liu, Yanfeng Hou, Shengkang Fu, Maoxin Yang, Hongbiao Sun, Yi Huang, ZhiBo Wang, Xiqiang Luo, Chengliang Tao, Qing Tang, Jiangxin Wang   +10 more
wiley   +1 more source

Transmitter IQ Skew Estimation for Alamouti Coding-Based Simplified Coherent Systems

IEEE Photonics Journal
The simplified coherent system combining Alamouti coding and single balanced photodetector reception has emerged as a promising solution for short reach scenarios. However, Alamouti coding is one kind of space-time coding that has a higher requirement on
Hong Lin, Jing Zhang, Shaohua Hu, Zhaopeng Xu, Bo Xu, Rui Wang, Kun Qiu   +6 more
doaj   +1 more source

Achievable information rate optimization in C-band optical fiber communication system. [PDF]

Front Optoelectron, 2023
Liu Z, Xu T, Qi J, Uduagbomen J, Zhao J, Liu T.   +5 more
europepmc   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

Advanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang, Liao Wu, Shuai He, Zhao Sha, Yuwan Huang, Shuying Wu, Dewei Chu, Chun H. Wang, Shuhua Peng   +8 more
wiley   +1 more source

Path Loss Modeling for RIS-Assisted Wireless Communication in Tunnel Scenarios

Sensors
Aiming to address the problem of limited transmission distance in applying reconfigurable intelligent surface (RIS) technology, this study leverages a tunnel simulation platform to investigate RIS-assisted wireless communication systems.
Qi Yang, Yating Wu, Hengkai Zhao, Yichen Feng, Yanqiong Sun, Zhou Fang, Guoxin Zheng   +6 more
doaj   +1 more source

Shaping lightwaves in time and frequency for optical fiber communication. [PDF]

Nat Commun, 2022
Cho J, Chen X, Raybon G, Che D, Burrows E, Olsson S, Tkach R.   +6 more
europepmc   +1 more source

Flexible Pressure Sensor With Co‐Optimized Sensitivity and Linearity Based on Gradient Toroidal Microstructures

Advanced Materials Technologies, EarlyView.
A flexible piezoresistive pressure sensor with gradient toroidal CNT/PDMS microstructures is reported. The hierarchical geometry enables sequential electrode contact, achieving a sensitivity of 256.20 kPa−1 and linear response (R2 = 0.99) over 0–1000 kPa.
Rongmei Wang, Ruolin Liu, Ming Lei, Yifan Liu, Fengming Hu, Bing Ji, Chao Peng, Jianyi Luo, Bingpu Zhou   +8 more
wiley   +1 more source

Efficient Pipeline Conflict Resolution for Layered QC-LDPC Decoders in OFDM-PON

Photonics
The high standard of communication quality in optical access networks makes forward error correction (FEC) schemes, such as LDPC, an integral part of the system.
Zhijie Wang, Zhengjun Xu, Kun Chen, Yuanzhe Qu, Xiaoqun Liu, Yingchun Li, Junjie Zhang   +6 more
doaj   +1 more source

Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications

Advanced Materials Technologies, EarlyView.
Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja, Mikko Kokkonen, Niina Halonen, Sami Myllymäki, Umair Rafique, Mandeep Singh, Ossi Laitinen, Heli Jantunen, Kristiina Oksman, Henrikki Liimatainen   +9 more
wiley   +1 more source