Results 141 to 150 of about 888 (172)

GNSS Augmentation using the VHF Data Exchange System (VDES)

ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of Navigation, 2018
There is an observed trend for the extent of sea ice in the Arctic to recede over recent years. Research by the Arctic Council and the Arctic Monitoring and Assessment Programme suggests that the Arctic Ocean could be largely free of sea ice in summer by earlier than mid-century, possibly as early as the late 2030s.
Jan Safar, George Shaw, Alan Grant, Hans Christian Haugli, Lars L�ge, Stig Erik Christiansen, Nader Alagha   +6 more
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Avionics-Based GNSS Integrity Augmentation Performance in a Jamming Environment

2015
Intentional and unintentional radiofrequency interference (i.e., jamming) can result in degraded navigation accuracy or complete loss of the GNSS signal tracking. Jammers can be classified into three broad categories: Narrowband Jammers (NBJ), Spread Spectrum Jammers(SSJ) and Wideband Gaussian Jammers (WGJ).
Sabatini, Roberto, Moore, Terry, Hill, Chris, Subramanian, Ramasamy   +3 more
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A system analysis of a GNSS augmentation data link

AIAA/IEEE Digital Avionics Systems Conference. 13th DASC, 2002
The advent of the Global Navigation Satellite System (GNSS) is having a profound impact on surveying, mapping, and navigation. Nowhere is this more evident than in civil aviation. In addition to the capability for cost effective precise positioning and navigation there is now the possibility to conceive systems based on this technology that for the ...
D. Peed, C. Moody
openaire   +1 more source

Custom GNSS Signal Simulator for LEO GNSS Augmentation System

ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of Navigation, 2023
Mohamed Abduljawad, Alina M. Hasbi, Jean-luc Issler   +2 more
openaire   +1 more source

Architectural optimization of extensible ground-based GNSS augmentation system

2009 Integrated Communications, Navigation and Surveillance Conference, 2009
An extensible ground-based GNSS augmentation system architecture is proposed and detailed in this paper. Operational issues related to interoperability of the system are discussed. Restrictions on reference stations site selection are derived from requirements of integrity monitoring center algorithms.
Rui Xue, Kun Fang, Jun Zhang, Yanbo Zhu
openaire   +1 more source

Peer to Peer Equation Augmentation for an Altitude Aided GNSS Receiver

2010 IEEE 72nd Vehicular Technology Conference - Fall, 2010
This paper considers the possibility to integrate external altitude measurements with a Kalman based Global Navigation Satellite System (GNSS) receiver in a peer to peer scenario. The performance of such a system is investigated for different characteristics of the aiding measurement and for different degree of trust of the receiver upon the aiding ...
RAO, MARCO, LO PRESTI, Letizia, Samson J.   +2 more
openaire   +2 more sources

Augmented positioning with CORSs network services using GNSS mass-market receivers

2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014, 2014
Over the last twenty years, positioning with low cost GNSS sensors has become widespread worldwide at both commercial and academic level. The Geomatics Research Group of DIATI at the Politecnico di Torino has carried out several experiments in order to evaluate the precision achievable when using mass-market GNSS receivers with a network of permanent ...
CINA, Alberto, DABOVE, PAOLO, MANZINO, AMBROGIO, PIRAS, MARCO   +3 more
openaire   +2 more sources

Slant ionosphere augmentation for GNSS high-precision positioning

Proceedings of the XXXVth URSI General Assembly and Scientific Symposium – GASS 2023, 2023
Yan Xiang, Ling Pei
openaire   +1 more source

Pseudolite system-augmented GNSS real-time kinematic PPP

Journal of Geodesy, 2022
Caoming Fan, Zheng Yao, Shengli Wang, Jianping Xing   +3 more
openaire   +1 more source

INTERACTIVE SYSTEM FOR STUDYING GNSS GROUND-BASED AUGMENTATION STATIONS

Materials of the 27th All-Russian Youth Scientific Conference
The paper presents the results of the development of an interactive system for studying GNSS augmentation stations, which contains general information about their operation, 3-D models for detailed study and testing on the topics studied. The article describes the capabilities of such devices, which will be useful when aviation cadets study them during
A.M. Frolova, V.E. Lukyantseva, A.E. Bulatova, D.A. Evsevichev, M.K. Samokhvalov   +4 more
openaire   +1 more source