Radiometric Characterization of a Water-Based Conical Blackbody Calibration Target for Millimetre-Wave Remote Sensing
2018 IEEE 15TH SPECIALIST MEETING ON MICROWAVE RADIOMETRY AND REMOTE SENSING OF THE ENVIRONMENT (MICRORAD)(2018)
摘要
In this work we describe the design and present radiometric measurements of a water-based conical blackbody calibration target prototype to be applied as a precise reference source in laboratories and for the accurate calibration of ground-based microwave instruments. The aqueous calibration target circumvents the conflict between the electromagnetic and thermal properties of traditional calibration target geometries. The temperature controllable target prototype consists of a conical low loss plastic shell which has been manufactured using a stereolithography 3D-printer to define the water surface. Radiometric measurements at 110 GHz demonstrate the outstanding thermal performance of the target prototype at various water temperatures between 10 °C and 60 °C.
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关键词
Calibration,microwave absorbers,black-body targets,microwave radiometry,remote sensing
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