Adaptive digital-beamforming antennas with navigation receiver for Galileo applications

TL;DRAbstract

The request for future Galileo-Applications with high level navigation accuracy and system integrity leads to a demand of new system and hardware developments. Current GPS-systems in the upper and lower L-band with omni-directional antennas show performance limits. Multiple reflections in the users environment are known as the dominant contribution of signal and accuracy degradation. For some security applications also jammer signals have to be considered. Improvements in the domain of signal processing are one method to detect and suppress these effects to a decent level. Future navigation systems with active high gain steerable antenna arrays can increase the initial navigation accuracy by tracking the visible satellites with multiple beams. Adaptive Antenna Arrays with digital beamforming (DBF) are offering a very flexible approach to build up such smart stand-alone systems for Galileo The beamforming and -steering capabilities can provide the required sidelobe control and nulling o

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