Results 81 to 90 of about 402,933 (289)

Synchronized and Co-Located Ionospheric and Atmospheric Anomalies Associated with the 2023 Mw 7.8 Turkey Earthquake

Remote Sensing
Earth observations from remotely sensed data have a substantial impact on natural hazard surveillance, specifically for earthquakes. The rapid emergence of diverse earthquake precursors has led to the exploration of different methodologies and datasets ...
Syed Faizan Haider, Munawar Shah, Bofeng Li, Punyawi Jamjareegulgarn, José Francisco de Oliveira-Júnior, Changyu Zhou   +5 more
doaj   +1 more source

Innovative Radiating Systems for Train Localization in Interference Conditions

International Journal of Antennas and Propagation, 2013
The design of innovative radiating systems based on the metamaterial technology for GNSS (Global Navigation Satellite System) applications in radio frequency (RF) interference conditions is proposed.
C. Vegni, M. Tosti, A. M. Vegni
doaj   +1 more source

Effective Efficiency Advantage Assessment of Information Filter for Conventional Kalman Filter in GNSS Scenarios

Sensors, 2019
The Global Navigation Satellite System (GNSS) is a widely used positioning technique. Computational efficiency is crucial to applications such as real-time GNSS positioning and GNSS network data processing.
Yanning Zheng, Siyou Wang, Shengli Wang
doaj   +1 more source

Feasibility of Consumer Grade GNSS Receivers for the Integration in Multi-Sensor-Systems

Sensors, 2020
Various GNSS applications require low-cost, small-scale, lightweight and power-saving GNSS devices and require high precision in terms of low noise for carrier phase and code observations.
Tobias Kersten, Jens-André Paffenholz
doaj   +1 more source

INTEGRATION OF INS AND GNSS FOR GRAVIMETRIC APPLICATION WITH UAS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Abstract. The integration based on Inertial Navigation System (INS) and Global Navigation Satellite System (GNSS) has been successfully developed in observing the gravity. Therefore, this study integrates a navigation-grade INS, iNAV-RQH from iMAR and GNSS from NovAtel to develope an Unmanned Aerial System (UAS) using unmanned helicopter for ...
Cheng-An Lin, Kai-Wei Chiang, Chung-Yen Kuo   +2 more
openaire   +4 more sources

Review on Laser Initiation of Energetic Materials

Propellants, Explosives, Pyrotechnics, EarlyView.
Laser ignitability of gold nanoparticles (GNPs)‐doped RDX explosive crystals. ABSTRACT Laser initiation of energetic materials has been an interesting and promising research area due to its safety and reliability features and its great potential for initiation device miniaturisation.
Xiao Fang, Jacqueline Akhavan
wiley   +1 more source

On methods for assessment of the value of observations in convection‐permitting data assimilation and numerical weather forecasting

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The routine assimilation of large numbers of observations collected from various observing systems is essential for the skill of modern numerical weather prediction (NWP). Assessment of the impact and influence of different observation types provides evidence guiding the design of future observation networks and the evaluation and improvement of ...
Guannan Hu, Sarah L. Dance, Alison Fowler, David Simonin, Joanne Waller, Thomas Auligne, Sean Healy, Daisuke Hotta, Ulrich Löhnert, Takemasa Miyoshi, Nikki C. Privé, Olaf Stiller, Xuguang Wang, Martin Weissmann   +13 more
wiley   +1 more source

Review of the state of the art and future prospects of the ground-based GNSS meteorology in Europe [PDF]

Atmospheric Measurement Techniques, 2016
Global navigation satellite systems (GNSSs) have revolutionised positioning, navigation, and timing, becoming a common part of our everyday life. Aside from these well-known civilian and commercial applications, GNSS is now an established atmospheric ...
G. Guerova, J. Jones, J. Douša, G. Dick, S. de Haan, E. Pottiaux, O. Bock, R. Pacione, G. Elgered, H. Vedel, M. Bender   +10 more
doaj   +1 more source

3D map creation using crowdsourced GNSS data [PDF]

arXiv, 2021
3D maps are increasingly useful for many applications such as drone navigation, emergency services, and urban planning. However, creating 3D maps and keeping them up-to-date using existing technologies, such as laser scanners, is expensive. This paper proposes and implements a novel approach to generate 2.5D (otherwise known as 3D level-of-detail (LOD)
arxiv  

MS‐SLAM: Memory‐Efficient Visual SLAM With Sliding Window Map Sparsification

Journal of Field Robotics, EarlyView.
ABSTRACT While most visual SLAM systems traditionally prioritize accuracy or speed, the associated memory consumption would also become a concern for robots working in large‐scale environments, primarily due to the perpetual preservation of increasing number of redundant map points.
Xiaoyu Zhang, Jinhu Dong, Yin Zhang, Yun‐Hui Liu   +3 more
wiley   +1 more source