| People | Locations | Statistics |
|---|---|---|
| Ziakopoulos, Apostolos | Athens |
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| Vigliani, Alessandro | Turin |
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| Catani, Jacopo | Rome |
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| Statheros, Thomas | Stevenage |
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| Utriainen, Roni | Tampere |
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| Guglieri, Giorgio | Turin |
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| Martínez Sánchez, Joaquín |
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| Tobolar, Jakub |
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| Volodarets, M. |
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| Piwowar, Piotr |
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| Tennoy, Aud | Oslo |
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| Matos, Ana Rita |
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| Cicevic, Svetlana |
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| Sommer, Carsten | Kassel |
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| Liu, Meiqi |
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| Pirdavani, Ali | Hasselt |
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| Niklaß, Malte |
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| Lima, Pedro | Braga |
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| Turunen, Anu W. |
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| Antunes, Carlos Henggeler |
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| Krasnov, Oleg A. |
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| Lopes, Joao P. |
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| Turan, Osman |
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| Lučanin, Vojkan | Belgrade |
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| Tanaskovic, Jovan |
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Felux, Michael
in Cooperation with on an Cooperation-Score of 37%
Topics
- air traffic
- radar
- air traffic control
- aircraft
- data
- crowd
- sea
- ocean
- flight
- surveillance
- region
- engineering
- civil aviation
- radio equipment
- navigational satellite
- flight crew
- flight plan
- radio frequency
- radio frequency interference
- aircraft pilotage
- estimate
- safety
- altitude
- profit
- alertness
- airspace
- drone
- assessment
- airport
- positioning
- position fixing
- protection
- cat
- Ground Based Augmentation System
- vision
- filter
- rotor
- flight test
- re-procurement
- transport aircraft
- test vehicle
- waiting time
- air traffic control facility
- multipath transmission
- landing
- monitoring
- supervisor
- alarm system
- polar region
- ionosphere
- supporting
- data collection
- attention
- behavior
- definition
- male
- electromagnetic spectrum
- instrumentation
- avionics
- aviation
- interference
- correlation analysis
- downtime
- recording instrument
- picture
- prevention
- terrain
- warning system
- airline
- cockpit
- cockpit crew
- control device
- sensor
- AIDS
- satellite navigation system
- dispatcher
- air traffic controller
- broadcasting
- midair crash
- radio navigation
- experiment
- security
- instrument landing system
- simulation
- antenna
- international airport
- workload
- algorithm
- estimating
- synthetic
- communication system
- machinery
- learning
- machine learning
- employed
- face
- modernization
- wide area network
- procurement
- coding system
- expected value
- airframe
- design standard
- implementation
- committee
- prototype
- civil aircraft
- modeling
- automatic pilot
- planning
- train consist
- architecture
- standardisation
- geometry
- motivation
- recommendation
- inflation
- normal distribution
- system availability
- noise
- choke
- design
- airport runway
- reflection
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- Statistic
- validation
- electron
- airworthiness
- minimisation
- wind
- runway overrun
- deviation
- certification
- airport capacity
- trajectory
- specification
- weather condition
- measuring instrument
- visibility
- test bed
- screening
- forecasting
- infrastructure
- accumulator
- distress
- autumn
- uncertainty
- base line
- performance evaluation
- standard deviation
- hinge
- accelerometer
- inertial navigation system
- amphetamine
- show 125 more
Publications (35/35 displayed)
- 2023Analysis of GNSS disruptions in European airspace
- 2022GNSS Jamming and Its Effect on Air Traffic in Eastern Europe
- 2022GBAS use cases beyond what was envisioned – drone navigation
- 2022Flight testing GBAS for UAV operations
- 2022Airborne Ionospheric Gradient Monitoring for Dual-Frequency GBAS
- 2022A standardizeable framework enabling DME/DME to support RNP
- 2022Impact of GNSS-band radio interference on operational avionics
- 2022Identification and operational impact analysis of GNSS RFI based on flight crew reports and ADS-B data
- 2022Impact of GNSS outage on mid-air collision
- 2021Flight trial demonstration of secure GBAS via the L-band digital aeronautical communications system (LDACS)citations
- 2021Final results on airborne multipath models for dualconstellation dual-frequency aviation applications
- 2021Impact of RFI on GNSS and avionics : a view from the cockpitcitations
- 2021Network-based ionospheric gradient monitoring to support GBAScitations
- 2021Flight Trial Demonstration of Secure GBAS via the L-band Digital Aeronautical Communication System (LDACS)citations
- 2020Combined Multilateration with Machine Learning for Enhanced Aircraft Localizationcitations
- 2020Network-Based Ionospheric Gradient Monitoring to Support GBAS
- 2019Towards Airborne Multipath Models for Dual Constellation and Dual Frequency GNSScitations
- 2019Initial results for dual constellation dual-frequency multipath models
- 2018Total System Performance of GBAS-based Automatic Landings ; Leistungsfähigkeit des Gesamtsystems GBAS-basierter Automatischer Landungen
- 2018Transmitting GBAS messages via LDACS
- 2018Total System Performance of GBAS-based Automatic Landings
- 2017Ionospheric Gradient Threat Mitigation in Future Dual Frequency GBAScitations
- 2017Future Dual Frequency Multi Constellation GBAS
- 2017Using a Wide Area Receiver Network to Support GBAS Ionospheric Monitoring
- 2017Future GBAS Processing - Do we need an ionosphere-free mode?
- 2016Multi-constellation GBAS: how to benefit from a second constellation
- 2015GBAS Ground Monitoring Requirements from an Airworthiness Perspectivecitations
- 2015Total System Performance in GBAS-based Landings
- 2013GBAS Approach Guidance Performance – A comparison to ILS
- 2012Approach service type D evaluation of the DLR GBAS testbedcitations
- 2012Flight Testing the GAST D Solution at DLR's GBAS Test Bed
- 2011Approach service type D evaluation of the DLR GBAS testbedcitations
- 2011Evaluation of GBAS Flight Tests with respect to GAST-D Requirements
- 2011GAST-D Monitoring Results from Post-processed Flight Trial Data - Performance Evaluation of DLR´s GBAS Testbed
- 2009A Robust and Effective GNSS/INS Integration Optimizing Cost and Effort
Places of action
conferencepaper
Future Dual Frequency Multi Constellation GBAS
Abstract
The Ground Based Augmentation System (GBAS) is a landing system for aircraft. It provides differential corrections for navigation systems from Global Navigation Satellite Systems (GNSS). Currently available GBAS installations only provide corrections for the US GPS constellations for signals in the L1 frequency band. Sharp gradients in the ionospheric plasma are a serious concern for differential systems like GBAS. Different ionospheric delays experienced at the GBAS ground station and by a GBAS user approaching the airport have the potential to result in unacceptably large ranging and thus position errors. In current systems highly conservative assumptions (worst ever observed gradient always present) and/or a significant number of sensitive monitors in the ground station and the airborne system are used to ensure safe operation under any conditions. While these concepts are working in mid-latitude regions with benign ionospheric characteristics, areas in equatorial and polar regions see frequent disturbances that are significant enough to limit the availability of GBAS to an operationally unacceptable level. With the introduction of Galileo, potentially also a modernized Glonass, the Chinese BeiDou and other constellations, such as the Japanese QZSS, a large number of additional GNSS satellites are becoming available for navigation. With all these navigation satellites available, the vulnerability of a GNSS service to ionospheric disturbances can be reduced dramatically. Furthermore, all operational Galileo satellites and all GPS satellites since the latest generation (Block IIF) are providing additional ranging signals in the L5 frequency band. This allows using a second frequency for calculating an ionosphere free position solution or effective monitoring for ionospheric gradients. Using dual frequency methods, however, comes at the cost of a significant increase in residual errors due to noise and multipath since the errors of the measurements on both frequencies are combined. Furthermore, both frequencies have to be tracked simultaneously at all times which may be challenging during the daily period of scintillations after sunset in equatorial regions. In this work we therefore investigate the performance of different future processing modes and discuss the implications of the respective modes and their performance under nominal and disturbed ionospheric conditions.
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