Results 101 to 110 of about 11,603,365 (342)

Outlier Accommodation for GNSS Precise Point Positioning using Risk-Averse State Estimation [PDF]

2024 American Control Conference (ACC)
Reliable and precise absolute positioning is necessary in the realm of Connected Automated Vehicles (CAV). Global Navigation Satellite Systems (GNSS) provides the foundation for absolute positioning. Recently enhanced Precise Point Positioning (PPP) technology now offers corrections for GNSS on a global scale, with the potential to achieve accuracy ...
arxiv   +1 more source

A comparison of established and digital surface model (DSM)‐based methods to determine population estimates and densities for king penguin colonies, using fixed‐wing drone and satellite imagery

Remote Sensing in Ecology and Conservation, EarlyView.
We used fixed‐wing drones and Beyond Visual Line of Sight flying to create high‐resolution imagery and Digital Surface Models (DSMs) of six large king penguin colonies (colony population sizes ranging from 10,671 to 132,577 pairs) in South Georgia. We used a novel DSM‐based method to facilitate automated and semi‐automated counts of each colony to ...
J. Coleman, N. Fenney, P.N. Trathan, A. Fox, E. Fox, A. Bennison, L. Ireland, M.A. Collins, P.R. Hollyman   +8 more
wiley   +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

Comprehensive review of innovative construction technology of high‐core rockfill dam: Nuozhadu project

River, EarlyView.
Abstract Underpinned by the ultrahigh‐core rockfill dam at the Nuozhadu Hydropower Station, comprehensive studies and engineering practices have been conducted to address several critical challenges: coordination of seepage deformation in dam materials, prevention and control of high‐water‐pressure seepage failure, static and dynamic deformation ...
Biao Liu, Zongliang Zhang, Lei Yan, Chao Liu, Mingxin Wu, Yuzhen Yu, Daren Zhang   +6 more
wiley   +1 more source

Controlled Synthesis of Bimetallic Gold‐Silver Nanostars: Atomic Insights and Predictive Formation Model

Small, EarlyView.
A systematic study of gold‐silver nanostars (GNSs) formation reveals the key role of silver and AgCl in directing GNSs growth. Using a rapid and green synthesis approach, temperature and AgNO₃ addition influence the process. This enables control over GNSs morphology, size, and concentration, allowing their properties to be tuned for various fields such
Daniela Dobrynin, Ivan Zlotver, Iryna Polishchuk, Yaron Kauffmann, Sharon Suharenko, Ron Koifman, Lucas Kuhrts, Alexander Katsman, Alejandro Sosnik, Boaz Pokroy   +9 more
wiley   +1 more source

Global Navigation Satellite Systems Reflectometry as a Remote Sensing Tool for Agriculture

Remote Sensing, 2012
The use of Global Navigation Satellite Systems (GNSS) signals for remote sensing applications, generally referred to as GNSS-Reflectometry (GNSS-R), is gaining increasing interest among the scientific community as a remote sensing tool for land ...
Alejandro Egido, Marco Caparrini, Giulio Ruffini, Simonetta Paloscia, Emanuele Santi, Leila Guerriero, Nazzareno Pierdicca, Nicolas Floury   +7 more
doaj   +1 more source

Monitoring of a multi‐span prestressed concrete bridge using satellite interferometric data and comparison with on‐site sensor results

Structural Concrete, EarlyView.
Abstract Satellite‐based Synthetic Aperture Radar Interferometry (InSAR) represents a promising supplement to traditional Structural Health Monitoring (SHM) methods, offering a non‐invasive solution that eliminates the need for sensor installations and provides extensive spatial coverage.
Pier Francesco Giordano, Maciej Kwapisz, Andrea Miano, Riccardo Liuzzo, Alois Vorwagner, Maria Pina Limongelli, Andrea Prota, Marian Ralbovsky   +7 more
wiley   +1 more source

Hierarchical Planning Applied to the Preliminary Design of CubeSats: Nanospace Study

Systems Engineering, EarlyView.
ABSTRACT CubeSat design has been already studied and formalized but knowledge representation remains a challenge. The management of human‐learnt knowledge during the process is not an aspect that is often spoken about. This paper discusses the proposal of integrating a hierarchical planning approach with a model‐based one to the open‐source Nanospace ...
Thibault Gateau, Sophia Salas Cordero, Rob Vingerhoeds   +2 more
wiley   +1 more source

Continuity of GNSS as a critical attribute for safety applications in land transport

Scientific Reports
The Global Navigation Satellite System (GNSS) is widely used for air traffic management—more than 150,000 aircraft and 5000 airports worldwide are equipped with SBAS (Satellite-based augmentation system) technology, which contributes to safer and more ...
Aleš Filip, Francesco Rispoli
doaj   +1 more source

A Dual-Band Rectangular CPW Folded SlotAntenna for GNSS Applications

, 2014
In this paper, a dual-band rectangular CPW folded slot antenna is studied for the Global Navigation Satellite Systems (GNSS) applications. The antenna operates for all the bands of the GNSS Systems (L1-L2-L5-E5-E6- G1-G2) and its maximum gain varies ...
Abdelati Reha, Marouane Bouchouirbat
semanticscholar   +1 more source