Results 61 to 70 of about 10,544 (275)
Multi-Antenna GNSS-Over-Fiber Architecture for Extensive Remote Multi-Baseline Network
IEEE Photonics Journal, 2020 GNSS carrier-phase-based double-difference positioning has been widely used in various precision positioning systems. This paper proposes a cost-effective scheme for an extensive multi-antenna remote multi-baseline network using a single GNSS-over-fiber ...
Puyu Liu +5 more
doaj +1 more source
Vertical Protection Level Optimization and Availability Analysis for Advanced RAIM
Frontiers in Energy Research, 2022 With the introduction of global navigation satellite systems (GNSSs) in aviation, there has been increased dependency on GNSS position. Multi-constellation GNSS services and equipment will remain a solution for many aircraft positions in safety.
Ershen Wang +7 more
doaj +1 more source
Improving performance of pedestrian positioning by using vehicular communication signals [PDF]
, 2018 Pedestrian-to-vehicle communications, where pedestrian devices transmit their position information to nearby vehicles to indicate their presence, help to reduce pedestrian accidents. Satellite-based systems are widely used for pedestrian positioning, but
Sadao Obana, Suhua Tang
core +2 more sources
Exploration of Multi-Mission Spaceborne GNSS-R Raw IF Data Sets: Processing, Data Products and Potential Applications [PDF]
, 2022 Weiqiang Li +4 more
openalex +1 more source
Journal of Field Robotics, EarlyView.ABSTRACT Personal autonomous vehicles can sense their surrounding environment, plan their route, and drive with little or no involvement of human drivers. Despite the latest technological advancements and the hopeful announcements made by leading entrepreneurs, to date no personal vehicle is approved for road circulation in a “fully” or “semi ...
Xingshuai Dong +13 more
wiley +1 more source
A New Online Service for the Validation of Multi-GNSS Orbits Using SLR
Remote Sensing, 2017 In the last decade, we have been witnessing a rapid development of the constellations of Global and Regional Navigation Satellite Systems (GNSS/RNSS). Besides the well-known GPS and GLONASS, newly developed systems such as Galileo, BeiDou, QZSS and NAVIC
Radosław Zajdel +2 more
doaj +1 more source
Influence of station density and multi-constellation GNSS observations on troposphere tomography [PDF]
Annales Geophysicae, 2019 Troposphere tomography, using multi-constellation observations from global navigation satellite systems (GNSSs), has become a novel approach for the three-dimensional (3-D) reconstruction of water vapour fields.
Q. Zhao, K. Zhang, K. Zhang, W. Yao
doaj +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.Canopy laser scanning (CLS) enhances 3D measurements of large trees by lifting laser scanners into the canopy. Combining CLS with terrestrial laser scanning improves point cloud precision, reduces occlusion and enables detailed assessments of tree architecture and canopy biodiversity, opening new opportunities for forest ecology.
Barbara D'hont +12 more
wiley +1 more source
Multi-Epoch 3D-Mapping-Aided Positioning using Bayesian Filtering Techniques
Navigation, 2022 The performance of different filtering algorithms combined with 3D-mapping-aided (3DMA) techniques is investigated in this paper. Several single- and multi-epoch filtering algorithms were implemented and then tested on static pedestrian navigation data ...
Qiming Zhong, Paul D. Groves
doaj +1 more source
Monitoring coastal sea level using reflected GNSS signals [PDF]
, 2011 A continuous monitoring of coastal sea level changes is important for human society since it is predicted that up to 332 million people in coastal and low-lying areas will be directly affected by flooding from sea level rise by the end of the 21st ...
Haas, Rüdiger +2 more
core +1 more source