A small forest of antennas sprouts from the roof of ESA’s Navigation Laboratory, primarily based on the ESTEC technical middle within the Netherlands, which is among the many most steadily satnav-fixed areas on Earth. This can be the location of the very first Galileo positioning repair, acquired again in 2014 utilizing the primary quartet of Galileo satellites.
“The antenna is a critical component of any Global Navigation Satellite System user segment, capturing power from the electromagnetic waves it receives, then changing it into electrical current to be processed by the remainder of the receiver chain,” explains Radio Navigation Engineer Michelangelo Albertazzi.
“Up here we have a variety of antenna designs in place—such as omnidirectional, high gain and arrays—from leading world receiver manufacturers, which acquire signals from all major global GNSS constellations, including Galileo, GPS, the Russian Glonass and China’s Beidou, as well as regional systems such as Europe’s EGNOS.”
The NavLab can be geared up with state-of-the-art gear to document, replay and analyze the RF alerts picked up by these antennas, to assist with its fundamental aim of performing assessments, analyses and characterisation of navigation methods for each ESA and exterior prospects.
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Image: Roof of the satnav world (2022, February 2)
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