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Innovation: Under Cover: Synthetic-Aperture GNSS Signal Processing
- Researchers are developing new GNSS receivers and antennas based on an innovative signal-processing scheme to significantly improve GNSS tracking reliability and accuracy under degraded signal conditions. It is based on the principles of synthetic-aperture radar. Like in a multi-antenna phased array receiver, GNSS signals from different spatial locations are combined coherently forming anResearchers are developing new GNSS receivers and antennas based on an innovative signal-processing scheme to significantly improve GNSS tracking reliability and accuracy under degraded signal conditions. It is based on the principles of synthetic-aperture radar. Like in a multi-antenna phased array receiver, GNSS signals from different spatial locations are combined coherently forming an optimized synthetic antenna-gain pattern. The method is implemented in a real-time PC-based software receiver and works with GPS, GLONASS, and Galileo signals. Multiple frequencies are generally supported. The idea of synthetic-aperture processing is realized as a coherent summation of correlation values of each satellite over the so-called beamforming interval. Each correlation value is multiplied with a phase factor. For example, the phase factor can be chosen to compensate for the relative antenna motion over the beam-forming interval and the resulting sum of the scaled correlation values represents a coherent correlation value maximizing the line of sight signal power.…
Document Type: | Article (reviewed) |
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Zitierlink: | https://opus.hs-offenburg.de/3578 | Bibliografische Angaben |
Title (English): | Innovation: Under Cover: Synthetic-Aperture GNSS Signal Processing |
Author: | Thomas Pany, Nico Falk, Bernhard Riedl, Carsten Stöber, Jón O. Winkel, Franz-Josef Schimpl |
Contributor(s): | Richard Langley |
Year of Publication: | 2013 |
First Page: | 42 |
Last Page: | 50 |
Parent Title (English): | GPS World |
Volume: | 24 |
Issue: | 9 |
ISSN: | 1048-5104 |
URL: | https://www.gpsworld.com/innovation-under-cover-synthetic-aperture-gnss-signal-processing/ |
Language: | English | Inhaltliche Informationen |
Institutes: | Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019) |
GND Keyword: | Apertur; GNSS; Signaltechnik | Formale Angaben |
Open Access: | Open Access |
Licence (German): | Urheberrechtlich geschützt |