Konovaltsev, Andriy and Basta, Nikola and Cuntz, Manuel (2009) Phase Centre Variations in �Adaptive GNSS Antenna Arrays. In: http://www.cost-ic0803.org/, Web-Page of Action. Workshop of COST Action IC0803 RFCSET, 2009-10-07 - 2009-10-09, Glyfada, Athens, Greece. (In Press)
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Official URL: http://www.cost-ic0803.org/
Abstract
Adaptive antennas with digital beamforming is a promising technology for mitigation of radio interference and multipath effects in GNSS receivers. It is however well known that adaptive antennas may introduce biases in the pseudo-range and carrier phase measurements of a GNSS receiver. This effect can be interpreted as the deviation of the array phase centre from its nominal position. The array phase centre position is affected by the beamforming process as well as the properties of a single array element and electromagnetic coupling between the elements. Another factor affecting the position of the array phase centre are different characteristics of individual antenna channels (RF front ends), which requires accurate calibration. In the work to be presented, we investigated the phase centre variations of a 2x2 uniform rectangular adaptive antenna array by using the measured patterns of the antenna elements and applying different beamforming techniques. The array is designed for the reception of GPS/Galileo signals in the L1 band. The beamforming techniques are implemented in DLR in-house multi-antenna software GNSS receiver. The effect of phase centre variations on the positioning accuracy of a GNSS receiver as well as the possible compensation approaches are discussed.
Item URL in elib: | https://elib.dlr.de/60237/ | ||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||
Title: | Phase Centre Variations in �Adaptive GNSS Antenna Arrays | ||||||||||||||||
Authors: |
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Date: | 8 October 2009 | ||||||||||||||||
Journal or Publication Title: | http://www.cost-ic0803.org/, Web-Page of Action | ||||||||||||||||
Refereed publication: | No | ||||||||||||||||
Open Access: | Yes | ||||||||||||||||
Gold Open Access: | No | ||||||||||||||||
In SCOPUS: | No | ||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||
Status: | In Press | ||||||||||||||||
Keywords: | Satellite navigation, adaptive antenna, phase centre, calibration | ||||||||||||||||
Event Title: | Workshop of COST Action IC0803 RFCSET | ||||||||||||||||
Event Location: | Glyfada, Athens, Greece | ||||||||||||||||
Event Type: | Workshop | ||||||||||||||||
Event Start Date: | 7 October 2009 | ||||||||||||||||
Event End Date: | 9 October 2009 | ||||||||||||||||
Organizer: | University of Peloponnese | ||||||||||||||||
HGF - Research field: | other | ||||||||||||||||
HGF - Program: | other | ||||||||||||||||
HGF - Program Themes: | other | ||||||||||||||||
DLR - Research area: | no assignment | ||||||||||||||||
DLR - Program: | no assignment | ||||||||||||||||
DLR - Research theme (Project): | no assignment | ||||||||||||||||
Location: | Oberpfaffenhofen | ||||||||||||||||
Institutes and Institutions: | Institute of Communication and Navigation > Navigation | ||||||||||||||||
Deposited By: | Konovaltsev, Dr.-Ing. Andriy | ||||||||||||||||
Deposited On: | 02 Nov 2009 08:02 | ||||||||||||||||
Last Modified: | 24 Apr 2024 19:25 |
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