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Global navigation satellite systems performance analysis and augmentation strategies in aviation

Roberto Sabatini, Terry Moore, Subramanian Ramasamy
2017 Progress in Aerospace Sciences  
for real-time and continuous integrity monitoring, avoidance of safety/mission-critical flight conditions and rapid recovery of the RNP in case of GNSS data degradation or loss.  ...  This is why a new form of ABAS specifically tailored for real-time integrity monitoring and augmentation in mission-critical and safety-critical aviation applications is needed [53, 54] and is discussed  ... 
doi:10.1016/j.paerosci.2017.10.002 fatcat:bgb4vcnv5jfnvddfi6hak62d5e

Long-term ionospheric anomaly monitoring for ground based augmentation systems

Sungwook Jung, Jiyun Lee
2012 Radio Science  
1] Extreme ionospheric anomalies can pose a potential integrity threat to ground-based augmentation of the Global Positioning System (GPS), and thus the development of ionospheric anomaly threat models  ...  Citation: Jung, S., and J. Lee (2012), Long-term ionospheric anomaly monitoring for ground based augmentation systems,  ...  The authors thank John Warburton of the  ... 
doi:10.1029/2012rs005016 fatcat:4gmb4v6dvrgopew32ta5zpup3e

D2.3 System Requirements Specification

Filip, Aleš; Holík, Filip; Neri, Alessandro; Salvitti, Maurizio; Dionisio, Cesare; Xefteris, Panagiotis; Salvatori, Pietro; Capua, Roberto; Gattuso, Luca; Innoccenti, Manuele; Giangolini, Marco; Grosch, Anja; Crespillo, Omar Garcia; Zhu, Chen; Kutik, Ondrej; Krajíček, Miroslav; Loupis, Michael; Spanoudakis, John
2020 Zenodo  
This is part of H2020 HELMET Project  ...  This requirement defines Accuracy (2*sigma) of position determination of 20 cm (lateral) related to driving on local roads.  ...  Rationale This requirement results from the analysis of the operational scenarios performed in the HELMET deliverable D2.  ... 
doi:10.5281/zenodo.4560425 fatcat:mc3u52bmxfcpxpp2pkat54lwdq

The GNSS NavAer INCT Project Overview and Main Results

João Francisco Galera Monico, Eurico Rodrigues de Paula, Alison de Oliveira Moraes, Emanoel Costa, Milton Hirokazu Shimabukuro, Daniele Barroca Marra Alves, Jonas Rodrigues de Souza, Paulo de Oliveira Camargo, Fabricio dos Santos Prol, Bruno César Vani, Vinicius Stuani Amadeo Pereira, Paulo Sergio de Oliveira Junior (+2 others)
2022 Journal of Aerospace Technology and Management  
For this reason, the application of GNSS-based technologies in aviation over the Brazilian territory requires an in-depth assessment of the ionosphere effects.  ...  Although GNSS navigation results in gains, the radio signals from these systems are strongly influenced by the ionospheric environment.  ...  and collaborators, who have been working hard and competently in the development of new contribution to the field and in technologies that will support GNSS-based air navigation in equatorial and low-latitude  ... 
doi:10.1590/jatm.v14.1249 fatcat:6mzcnz3nyvdfrcibyhlkdm5nzm

GNSS Vulnerabilities and Existing Solutions: A Review of the Literature

Jasmine Zidan, E. I. Adegoke, Erik Kampert, Stewart A. Birrell, Col R. Ford, Matthew D. Higgins
2020 IEEE Access  
Data obtained from GNSS can also be fused with complimentary sensor data for active control and passive safety systems, vehicle platooning, driver monitoring, pre-crash restrain and collision avoidance  ...  In GNSS applications that require precise positioning, mitigating ionospheric scintillation is critical [48] , [50] .  ... 
doi:10.1109/access.2020.2973759 fatcat:cwwoiufkavh4vahrie6adtrkim

Principles of GNSS, inertial, and multisensor integrated navigation systems, 2nd edition [Book review]

Paul D. Groves
2015 IEEE Aerospace and Electronic Systems Magazine  
However, they provide a useful backup to GNSS for safety-critical applications.  ...  For safety-critical applications, such as civil aviation, the integrity monitoring system must be formally certified to ensure it meets a number of performance requirements.  ...  He has helped to organize a number of conferences and seminars and acted as a peer reviewer for several journals.  ... 
doi:10.1109/maes.2014.14110 fatcat:iwowfiidazbljiamuiyjv6363u

A survey on coping with intentional interference in satellite navigation for manned and unmanned aircraft

Ruben Morales-Ferre, Philipp Richter, Emanuela Falletti, Alberto de la Fuente, Elena Simona Lohan
2019 IEEE Communications Surveys and Tutorials  
After reviewing the main concepts of GNSS-based navigation, the interference and interference management solutions are classified, with a particular focus on the two major threats in GNSS navigation, namely  ...  Intentional interference in satellite navigation is becoming an increasing threat for modern systems relying on Global Navigation Satellite Systems (GNSS).  ...  [236] processed both CW and chirp signals for JSRs between −20 and 30 dB. The mitigation was effective even against powerful jammers (up to 30 dB of JSR), especially for CW signals [236] .  ... 
doi:10.1109/comst.2019.2949178 fatcat:pt24wzmo45abzp2d2wfwlfbtii

Development of Space Weather Reasonable Worst Case Scenarios for the UK National Risk Assessment

Mike Hapgood, Matthew J. Angling, Gemma Attrill, Mario Bisi, Paul S. Cannon, Clive Dyer, Jonathan P. Eastwood, Sean Elvidge, Mark Gibbs, Richard A. Harrison, Colin Hord, Richard B. Horne (+13 others)
2021 Space Weather: The international journal of research and applications  
The authors also express our thanks to Catherine Burnett for her support and encouragement of the work of SEIEG, not least this paper.  ...  SEIEG was set up in 2010 with strong encouragement from the Civil Contingencies Secretariat (CCS), part of Cabinet Office, and, in particular, has developed and maintained the set of reasonable worst-case  ...  While power supply failures would severely degrade signaling operations, meanwhile, the unavailability of GNSS services would impact many non-safety critical railway systems, with the potential to lead  ... 
doi:10.1029/2020sw002593 fatcat:wplmuiskabgtdbvmhoqq44xtca

Understanding space weather to shield society: A global road map for 2015–2025 commissioned by COSPAR and ILWS

Carolus J. Schrijver, Kirsti Kauristie, Alan D. Aylward, Clezio M. Denardini, Sarah E. Gibson, Alexi Glover, Nat Gopalswamy, Manuel Grande, Mike Hapgood, Daniel Heynderickx, Norbert Jakowski, Vladimir V. Kalegaev (+14 others)
2015 Advances in Space Research  
a coordinated international approach to effectively provide awareness of the processes within the Sun-Earth system through observation-driven models.  ...  This roadmap prioritizes the scientific focus areas and research infrastructure that are needed to significantly advance our understanding of space weather of all intensities and of its implications for  ...  These systems monitor the accuracy and reliability of the positioning signal and provide an integrity flag that can warn GNSS users when back-up solutions for navigation must be used (well demonstrated  ... 
doi:10.1016/j.asr.2015.03.023 fatcat:xfsgoua3hjgato3bichbfwl3ha

The ESPAS e-infrastructure: Access to data from near-Earth space

Anna Belehaki, Sarah James, Mike Hapgood, Spiros Ventouras, Ivan Galkin, Antonis Lembesis, Ioanna Tsagouri, Anna Charisi, Luca Spogli, Jens Berdermann, Ingemar Häggström
2016 Advances in Space Research  
Authors are grateful to the "Laboratorio grafica & immagini" of the Istituto Nazionale di Geofisica e Vulcanologia for its precious work in designing the ESPAS corporate material and logo.  ...  Andrew Charalambous for the design, construction, deployement and subsequent maintenance of the FPIs and SCANDI, and the photos and figures of the instruments.  ...  and scale lengths of up to several thousand kilometres can be monitored complementary by ground-and space-based GNSS measurements.  ... 
doi:10.1016/j.asr.2016.06.014 fatcat:k75krndfmnczjjg5ajdvg4jp4e

Remote Sensing Systems for Ocean: A Review (Part 2: Active Systems)

Meisam Amani, Farzaneh Mohseni, Nasir Farsad Layegh, Mohsen Eslami Nazari, Farzam Fatolazadeh, Abbas Salehitangrizi, Seyed Ali Ahmadi, Hamid Ebrahimy, Arsalan Ghorbanian, Shuanggen Jin, Sahel Mahdavi, Armin Moghimi
2022 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
As discussed in the previous part of this review paper, Remote Sensing (RS) creates unprecedented opportunities by providing a variety of systems with different characteristics to study and monitor oceans  ...  Part 1 of this review paper was dedicated to reviewing passive RS systems and their main applications in the ocean.  ...  HF radar has become an important technique in the monitoring of the sea surface due to the availability of Doppler processing.  ... 
doi:10.1109/jstars.2022.3141980 fatcat:kc55frb76nbtfkkfabvhbtflem

The Federal Radionavigation Plan

1981 Navigation  
GPS Backup for Critical Infrastructure The USG recognizes the benefits of providing a backup capability to GPS to mitigate the safety, security, or economic effects of a disruption of GPS service.  ...  those services are not a part of a backup PNT strategy for critical applications or safety-of-life services.  ...  Codeless or Semicodeless Processing -Techniques to obtain L2 Y code pseudorange and carrier -phase measurements without the cryptographic knowledge for full access to this signal.  ... 
doi:10.1002/j.2161-4296.1981.tb00771.x fatcat:uiqoj4rvxbb5znxcn3vu55lfsm

The Economic Impact of Space Weather: Where Do We Stand?

J. P. Eastwood, E. Biffis, M. A. Hapgood, L. Green, M. M. Bisi, R. D. Bentley, R. Wicks, L.-A. McKinnell, M. Gibbs, C. Burnett
2017 Risk Analysis  
Generally speaking, there is a good volume of scientific peer-reviewed literature detailing the likelihood and statistics of different types of space weather phenomena.  ...  Here, we provide an initial literature review to gather and assess the quality of any published assessments of space weather impacts and socioeconomic studies.  ...  (17) Global Navigation Satellite Systems: Disruption to Service Space weather causes signal distortion (scintillation and loss of lock) in the ionosphere and does not have a significant impact on  ... 
doi:10.1111/risa.12765 pmid:28230267 fatcat:6z67ozgqznfptkecds6qhufife

Self-Organized Evolutionary Process in Sets of Interdependent Variables near the Midpoint of Phase Transition in K-Satisfiability [chapter]

Michael Korkin
2001 Lecture Notes in Computer Science  
Ackerman, John T Strategic Studies Quarterly: An Air Force-Sponsored Strategic Forum for Military, Government, and Academic Professionals. Volume 2, Number 1 -7 Acuff, Hugh F  ...  Ground-based GPS receivers monitor the Earth's ionosphere continuously and a comprehensive database of ionospheric measurements suitable for tomographic processing now exists.  ...  Today's verification techniques are hard-pressed to scale with the ever-increasing complexity of safety critical systems.  ... 
doi:10.1007/3-540-45443-8_20 fatcat:ght26tu6avh57kkp54kifofaee

Multi instrument Investigation of the impact of the Space Weather events of 6–10 September 2017

Paul O. Amaechi, Andrew O. Akala, Johnson O. Oyedokun, K. G Simi, O. Aghogho, Elijah O. Oyeyemi
2021 Space Weather: The international journal of research and applications  
systems and pose a danger to human health and safety (Koons et al., 1999) .  ...  Space weather refers to the variations in the Sun, solar wind, magnetosphere, ionosphere, and thermosphere, which can affect the performance of a wide range of space-borne and ground-based technological  ...  posing a threat to the smooth operation of Global Navigation Satellite System (GNSS) applications (Berdermann et al., 2018) .  ... 
doi:10.1029/2021sw002806 fatcat:xjlrtdgkbvenzkw4pmxu7aucga
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