Results 51 to 60 of about 911,639 (290)

Combination of Smartphone MEMS Sensors and Environmental Prior Information for Pedestrian Indoor Positioning

Sensors, 2020
In view of the inability of Global Navigation Satellite System (GNSS) to provide accurate indoor positioning services and the growing demand for location-based services, indoor positioning has become one of the most attractive research areas.
Lu Huang, Hongsheng Li, Baoguo Yu, Xingli Gan, Boyuan Wang, Yaning Li, Ruihui Zhu   +6 more
doaj   +1 more source

Accelerated Discovery of Topological Spin Phase Diagrams in CrSBr Magnets Via High‐Throughput Optimization

Advanced Functional Materials, EarlyView.
Here, we develop a high‐throughput algorithm that accelerates the elucidation of phase diagrams of topological spin textures using limited computational resources at high numerical accuracy. Applying this framework to the van der Waals magnet CrSBr, we unveiled a hierarchy of previously unknown topological textures (domain‐wall bimerons, bimeron chains,
Andrew Lyall, Mohammad H. Badarneh, Cristian Bonato, Rebecca Cheung, Elton J. G. Santos   +4 more
wiley   +1 more source

Overview of the system-level anti-jamming capability and developmental challenges of low-earth-orbit signal-of-opportunity

Frontiers in Physics
Signal-of-Opportunity (SOP) navigation based on Low-Earth-Orbit (LEO) satellite constellations has increasingly become a research hotspot. Due to the large number of LEO satellites, wide spectrum coverage, and strong signal power, LEO satellite Signal-of-
Lihao Yao, Lihao Yao, Bin Fan, Honglei Qin, Deyong Xian, Mengli Wang, Boyun Gu, Sumin Chen, Sumin Chen, Changhong Wang, Changhong Wang, Xuyu Wang, Jiemin Shen, Dongfang Jiang, Heng Wei, Haoyuan Yu, Bingjie Liu, Shuai Shao   +17 more
doaj   +1 more source

An Indoor DFEC Ranging Method for Homologous Base Station Based on GPS L1 and BeiDou B1 Signals

Sensors, 2020
High-precision navigation and positioning technology for indoor areas has become one of the research hotspots in the current navigation field. However, due to the complexity of the indoor environment, this technology direction is also one of the research
Heng Zhang, Shuguo Pan, Chuanzhen Sheng, Xingli Gan, Baoguo Yu, Lu Huang, Yaning Li   +6 more
doaj   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

A Location and Movement Dependent GNSS Multipath Error Model for Pedestrian Applications [PDF]

, 2009
In 2002 the German Aerospace Centre (DLR) performed a measurement campaign of the land mobile multipath channel in and around the city of Munich. From this data a channel model was derived that is synthesising the measured channel impulse response.
Lehner, Andreas, Schubert, Frank, Steingass, Alexander   +2 more
core  

LDACS1 for APNT - Planning and realization of a flight measurement campaign [PDF]

, 2012
Recently, it has been proposed to extend the functionality of the future L-band Digital Aeronautical Communication System type 1 (LDACS1) to allow for navigational services.
D. Shutin, Schnekenburger, Nicolas, Schnell, Michael, N. Schneckenburger, Shutin, Dmitriy, M. Schnell   +5 more
core   +1 more source

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

Advanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena, J. Terence Blaskovits, Kun‐Han Lin, Denis Andrienko   +3 more
wiley   +1 more source

Satellite Navigation System with Pulsars. [PDF]

, 2022
The purpose of this thesis is to investigate the feasibility of a navigation system for satellite aided with pulsars. Pulsar navigation system can provide an autonomous method for the determination of position, velocity and attitude of spacecraft for any
Brotto, Francesca
core  

An Improved Divergence-Free Hatch Filter Algorithm Toward Sub-Meter Train Positioning With GNSS Single- Frequency Observations Only

IEEE Access, 2020
Train positioning is the core function in the application of Global Navigation Satellite Systems (GNSS) in Railway Transportation. However, the use of the differential GPS (DGPS) along the Qinghai-Tibet Railway is expensive and difficult to maintain ...
Rui Tian, Xurong Dong
doaj   +1 more source