• Publications
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GPS Galileo Time Offset: How It Affects Positioning Accuracy and How to Cope with It
Looking forward for the advent of the future European navigation system Galileo, we anticipate a big part of its potential users to utilize combined GPS/Galileo receivers. It will allow such users toExpand
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Suppression of multipath and jamming signals by digital beamforming for GPS/Galileo applications
Digital beamforming (DBF) has been studied to obtain automatic beam steering towards desired signals and simultaneous elimination of multipath and jamming signals at GNSS receivers, which is madeExpand
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Development of Robust Safety-of-Life Navigation Receivers
This paper summarizes the development of safety-of-life receivers for global navigation satellite systems. Two receiver systems have been successfully fabricated, integrated, and tested by means ofExpand
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Concepts, Development, and Validation of Multiantenna GNSS Receivers for Resilient Navigation
Array processing proved itself in the last decades as a powerful approach to suppress harmful radio frequency interference. However, the interference mitigation in the spatial domain can also lead toExpand
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Antenna and RF front end calibration in a GNSS array receiver
The use of spatial-domain signal processing for mitigation of interference signals in receivers of global navigation satellite systems (GNSS) allows for improvement of the overall system performance.Expand
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Time Dissemination and Common View Time Transfer With Galileo: How Accurate Will It Be?
Abstract : The future European navigation system Galileo will provide both positioning and timing capabilities to its users in the frame of four basic navigation services. Two of them are of specialExpand
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  • Open Access
Aviation Applications: Hybrid Navigation Techniques and Safety-of-Life Requirements, Part 1
This paper describes some key results of the UniTaS IV project, a publicly funded effort to investigate special problems in the application of satellite navigation for aviation. Among the subjectsExpand
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  • Open Access
Local GNSS Threat Detection Methods for Virtual Balise Placement in Railway Applications
The introduction of the GNSS positioning technology into the evolution of ERTMS/ETCS is based on the concept of virtual balise to minimize the impact onto existing ERTMS solutions. The detection ofExpand
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Robust Joint Multi-Antenna Spoofing Detection and Attitude Estimation using Direction Assisted Multiple Hypotheses RAIM
The paper presents an approach for detection of spoofing/meaconing signals using the direction-of-arrival (DOA) measurements available in a multi-antenna navigation receiver. The detection is basedExpand
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  • Open Access
Mitigation of Continuous and Pulsed Radio Interference with GNSS Antenna Arrays
A number of antenna array techniques for radio interference mitigation in GNSS receivers have been intensively studied in the last two decades showing that space-only or space-time adaptiveExpand
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  • Open Access