Uncertainty Quantification for the Reflector Antenna in the Copernicus Imaging Microwave Radiometer
The European Space Agency is currently working on realizing the Copernicus Imaging Microwave Radiometer (CIMR) which is a satellite-based multi-frequency microwave radiometer and one of the most ambitious missions of the Copernicus space segment. In this paper, results from the uncertainty quantification analyses that have been carried out for the CIMR reflector antenna are presented. The analyses focus on the effects of random distortions of the facets of the reflector surface and on distortions of the geometry in the reflective mesh which will make up the surface of the reflector. It is shown that distortion of the surface facets has a greater impact on the antenna parameters than changes in the mesh geometry. As expected, the impact is significantly greater at the high frequencies than at the lower frequencies.
Publication: EuCAP 2024
Place: Glasgow, Scotland
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