Results 51 to 60 of about 11,564,246 (232)
WHITE PAPER: Protecting GNSS Against Intentional Interference [PDF]
arXiv, 2022 The vulnerabilities associated with modern systems relying on Global Navigation Satellite Systems (GNSS) due to intentional and unintentional interference is an increasing threat. Since radio frequency interference (RFI) significantly degrades the performance of a GNSS receiver.
arxiv
Multi-Global Navigation Satellite System for Earth Observation: Recent Developments and New Progress
Remote SensingThe Global Navigation Satellite System (GNSS) has made important progress in Earth observation and applications. With the successful design of the BeiDou Navigation Satellite System (BDS), four global navigation satellite systems are available worldwide,
Shuanggen Jin +3 more
doaj +1 more source
Precise VLBI/GNSS ties with micro-VLBI [PDF]
arXiv, 2023 We present here a concept of measuring local ties between collocated GNSS and VLBI stations using the microwave technique that effectively transforms a GNSS receiver to an element of a VLBI network. This is achieved by modifying the signal chain that allows to transfer voltage of the GNSS antenna to a digitizer via a coaxial cable.
arxiv
Archaeological Prospection, EarlyView.ABSTRACT Electrical resistivity tomography (ERT) is nowadays widely used in archaeological prospection. This study deals with an approach to make ERT more time‐efficient and flexible. It is based on calculating arbitrary 4‐point configurations by superposition of multiple pole–pole measurements.
Simon Levin Fischer +3 more
wiley +1 more source
Remote Sensing Analysis and LiDAR Experimenting in the Espique Valley (La Peza, Granada, Spain)
Archaeological Prospection, EarlyView.ABSTRACT The Espique valley is a small space at the foot of the mountain, practically closed, which hides a rich archaeological heritage, not only of habitats but also of varied productive spaces. For some years now, MEMOLab UGR has been carrying out research that is now enriched with the contribution of LiDAR, with whose application we are ...
Jesús Rodríguez Bulnes +2 more
wiley +1 more source
Compact 6+1 antenna array for robust GNSS applications
International Conference on Localization and Global Navigation Satellite System, 2016 The increase in GNSS satellites and services is fostering a new wave of applications related to satellite navigation. Such increase is also followed by more and more threats, aiming at signal disruption.
S. Caizzone +3 more
semanticscholar +1 more source
Archaeological Prospection, EarlyView.ABSTRACT This paper presents a novel methodology and workflow successful in identifying and mapping undercanopy archaeology in woodland Mediterranean areas. The study area is characterized by dense vegetation typical of the Mediterranean area, located in southern Tuscany (Italy), within the territory of the ancient city of Rusellae next to the ...
G. P. Cirigliano +6 more
wiley +1 more source
Remote Sensing, 2021 Seamless positioning systems for complex environments have been a popular focus of research on positioning safety for autonomous vehicles (AVs). In particular, the seamless high-precision positioning of AVs indoors and outdoors still poses considerable ...
Changqiang Wang +5 more
semanticscholar +1 more source
Research on the Prediction Method of 3D Surface Deformation in Filling Mining Based on InSAR‐IPIM
Energy Science &Engineering, EarlyView.Aiming at a series of defects existing in the monitoring of mining area by InSAR technology, this paper proposes an insar‐ipim model to predict the three‐dimensional surface deformation of filling mining. The parameters of the model are inversed by using the group optimization algorithm slime bacteria algorithm proposed in 2020, and the empirical ...
Meng Wang +8 more
wiley +1 more source
Miniaturized Dielectric Resonator Antenna Array for GNSS Applications
, 2016 The increase in global navigation satellite systems (GNSS) availability and services is fostering a new wave of applications related to satellite navigation. Such increase is also followed by more and more threats, aiming at signal disruption.
S. Caizzone, G. Buchner, W. Elmarissi
semanticscholar +1 more source