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Millimeter and sub-millimeter-wave imagers and sounders are considered for future meteorological and climate observation satellites. The Geostationary Atmospheric Sounder (GAS), is a development project for an imaging sounder at frequency bands around 53 GHz, 118 GHz, 183 GHz, and 380 GHz. These frequency bands are included to satisfy the user requirements for vertical profiles of temperature and...
This paper presents the ongoing development of a demonstrator for the geostationary atmospheric sounder (GAS) instrument. GAS utilizes synthetic aperture radiometry to obtain desired spatial (30 km) and temporal (nowcasting) resolution for measurement of atmospheric temperature and humidity profiles under all weather conditions. These parameters are decisively important to meteorological and climate...
A multi-functional single-chip 53 GHz radiometer front-end MMIC has been designed in a commercial GaAs mHEMT technology and evaluated by probed measurements. To the best of the authors' knowledge, this is the first multi-functional MMIC ever presented intended for a radiometer application. Thus, the presented MMIC represents the future in radiometer front-end design, enabling a new generation of radiometers...
This paper presents the concept and initial breadboarding results of geostationary atmospheric sounder (GAS), which is being developed by Saab Space AB and Omnisys AB, Sweden, and funded by European Space Agency (ESA). GAS utilizes interferometric synthetic aperture radiometry to obtain desired spatial (30 km) and temporal (nowcasting) resolution for measurement of atmospheric temperature and humidity...
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