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Reconstruction of Galileo Constellation Antenna Pattern for space service volume applications
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Reconstruction of Galileo Constellation Antenna Pattern for space service volume applications

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This JRC Technical Report provides technical background on the work done for the derivation of the “Galileo Reference Antenna Pattern (GRAP)” model which is proposed to be adopted as the reference model by the Galileo Programme. The GRAP here described is a model representing the Galileo Full Operational Capability (FOC) satellites expected Equivalent Isotropic Radiated Power (EIRP) variation. The starting point is the characterization campaign performed on the Galileo FOC antennas up to higher as possible off-boresight angles, before their integration on the satellites, complemented with measurements after integration. This technical report provides an in-depth description of the implementation and processing steps, complementing the results provided in the Galileo reference document. The mathematical framework provided here can be used to better understand the GRAP model properties and foster future analysis. In order to derive the model, a dedicated multi-step procedure has been derived, aggregating the available information and using proper methodologies derived from antenna’s characterization techniques and statistical learning. The pattern reconstruction was derived as a spatial distribution working closer to the expected physical behaviour and continuously defined on the hemisphere. A key added value of the GRAP model for the users is that it includes an estimation of its confidence intervals.
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ISSN 1831-9424
ISBN 978-92-68-11545-9
DOI 10.2760/765842
Katalooginumber KJ-NA-31-812-EN-N
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ISSN 1831-9424 ISBN 978-92-68-11545-9 DOI 10.2760/765842 Katalooginumber KJ-NA-31-812-EN-N
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