Results 61 to 70 of about 11,928 (237)
Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems
Advanced Electronic Materials, EarlyView.Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang +9 more
wiley +1 more source
Advanced Intelligent Systems, EarlyView.Four decades of retinal vessel segmentation research (1982–2025) are synthesized, spanning classical image processing, machine learning, and deep learning paradigms. A meta‐analysis of 428 studies establishes a unified taxonomy and highlights performance trends, generalization capabilities, and clinical relevance.
Avinash Bansal +6 more
wiley +1 more source
Understanding and Ameliorating Non-Linear Phase and Amplitude Responses in AMCW Lidar
Remote Sensing, 2011 Amplitude modulated continuous wave (AMCW) lidar systems commonly suffer from non-linear phase and amplitude responses due to a number of known factors such as aliasing and multipath inteference. In order to produce useful range and intensity information
John P. Godbaz +2 more
doaj +1 more source
Advanced Intelligent Systems, EarlyView.This work presents a bio‐inspired computing framework for Parkinson's disease analog recognition using electroencephalogram signals. Temporally encoded EEG features stimulate a mycelium‐inspired memristive reservoir, where disease‐related patterns emerge through physical spatiotemporal dynamics.
Ioannis K. Chatzipaschalis +5 more
wiley +1 more source
Inferring Snow Water Equivalent for a Snow-Covered Ground Reflector Using GPS Multipath Signals
Remote Sensing, 2010 A nonlinear least squares fitting algorithm is used to estimate both snow depth and snow density for a snow-layer above a flat ground reflector.
Mark D. Jacobson
doaj +1 more source
Advanced Intelligent Systems, EarlyView.This work proposes MDSC, an unsupervised low‐light enhancement framework integrating three core innovations: detail‐aware smoothing, multipath decomposition, and synergistic correction. It suppresses noise, handles rapid illumination variations, and prevents reflectance‐contrast amplification inherent to Retinex separation.
Yong Cheng +6 more
wiley +1 more source
Positioning in a Multipath Channel Using OFDM Signals With Carrier Phase Tracking
IEEE Access, 2020 In developing a high accuracy terrestrial radio navigation system, as a complement to a global navigation satellite system (GNSS), it is recognized that the performance of time delay estimation is proportional to, and thereby limited by, the signal ...
H. Dun, C. Tiberius, G. Janssen
semanticscholar +1 more source
Snow Depth Estimation on Slopes Using GPS-Interferometric Reflectometry
Sensors, 2019 Snow is one of the most critical sources of freshwater, which influences the global water cycle and climate change. However, it is difficult to monitor global snow variations with high spatial−temporal resolution using traditional techniques due to
Haohan Wei +4 more
doaj +1 more source
A Multipath Analysis of Biswapped Networks [PDF]
The Computer Journal, 2010 Biswapped networks of the form Bsw(G) have recently been proposed as interconnection networks to be implemented as optical transpose interconnection systems. We provide a systematic construction of κ+1 vertex-disjoint paths joining any two distinct vertices in Bsw(G), where κ≥1 is the connectivity of G. In doing so, we obtain an upper bound of max{2Δ(G)
Yonghong Xiang, Iain A. Stewart
openaire +2 more sources
Revolutionizing Healthcare With Paper‐Based Nucleic Acid Testing
Exploration, EarlyView.This work summarizes strategies to enhance paper‐based devices for nucleic acid testing. Key approaches include optimizing paper platforms, improving nucleic acid amplification, and refining labeling/signaling methods. These advancements aim to boost sensitivity, speed, and usability, making paper‐based diagnostics more effective for point‐of‐care ...
Hong Zhang +8 more
wiley +1 more source