Results 51 to 60 of about 59,060 (340)

Polarized Skylight Navigation System (PSNS)/ GNSS/SINS Integrated Navigation [PDF]

open access: yesarXiv, 2020
Bioinspired polarized skylight navigation system (PSNS) is a new navigation method, which imitates insects using polarized skylight for navigation. However, the latest research shows that the current PSNS is difficult to obtain the three-dimensional (3D) attitude in real time only relying on polarized skylight.
arxiv  

Concepts for a Semantically Accessible Materials Data Space: Overview over Specific Implementations in Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
This manuscript presents advances in digital transformation within materials science and engineering, emphasizing the role of the MaterialDigital Initiative. By testing and applying concepts such as ontologies, knowledge graphs, and integrated workflows, it promotes semantic interoperability and data‐driven innovation. The article reviews collaborative
Bernd Bayerlein   +44 more
wiley   +1 more source

A Comprehensive Signal Quality Assessment for BDS/Galileo/GPS Satellites and Signals

open access: yesRemote Sensing
With the modernization of global navigation satellite systems (GNSS), especially the rapid development of the BeiDou Navigation Satellite System (BDS), more observations of satellites and signals have become available.
Yijun Tian   +10 more
doaj   +1 more source

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

open access: yesSensors, 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   +6 more
doaj   +1 more source

A History of Satellite Navigation

open access: yesNavigation, 1995
Navigation by use of earth satellites is expanding explosively. Current estimates are that 60,000 civil sets are being produced each month. With increased use in automobiles, ships, and airplanes, this application of satellites is expected soon to rival the communications applications.
Ronald L. Beard   +3 more
openaire   +2 more sources

Advancing Digital Transformation in Material Science: The Role of Workflows Within the MaterialDigital Initiative

open access: yesAdvanced Engineering Materials, EarlyView.
The MaterialDigital initiative drives the digital transformation of material science by promoting findable, accessible, interoperable, and reusable principles and enhancing data interoperability. This article explores the role of scientific workflows, highlights challenges in their adoption, and introduces the Workflow Store as a key tool for sharing ...
Simon Bekemeier   +37 more
wiley   +1 more source

Testing different 3D techniques using geometric morphometrics: Implications for cranial fluctuating asymmetry in humans

open access: yesAmerican Journal of Biological Anthropology, Volume 180, Issue 1, Page 224-234, January 2023., 2023
When measuring the shape human crania, 3D digitizer, CT scanner, and surface scanner will measure precisely enough that individuals can be told apart in a principal component plot. Abstract This study aimed to test the performance of 3D digitizer, CT scanner, and surface scanner in detecting cranial fluctuating asymmetry. Sets of 32 landmarks (6 in the
Trine Bottos Olsen   +2 more
wiley   +1 more source

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

open access: yesSensors, 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   +6 more
doaj   +1 more source

International Application of BeiDou Navigation Satellite System

open access: yes中国工程科学, 2023
The international application of the BeiDou navigation satellite system (BDS) is a new requirement for BDS development in the new development stage; it is also significant for promoting the high-quality development of the Belt and Road, establishing a ...
Yang Changfeng   +4 more
doaj   +1 more source

Global navigation satellite system [PDF]

open access: yes, 2014
The last few years there has been increased interest in the commercialization of the Global Navigation Satellite System (GNSS) which is often referred to as the Global Positioning System (GPS) in various applications. A GPS system uses spread spectrum signals-binary phaseshift keying (BPSK)-emitted from satellites in space for position and time ...
openaire   +3 more sources

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