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In this paper, we present enhancements made to the spectral modeling capabilities of the previously developed SIGMA for Ionospheric propagation. The incorporation of Shkarofsky's generalized spectrum offers the flexibility required to more effectively represent the wide range of electron density distributions observed in Equatorial and Polar Regions. In exercising this new capability we demonstrate...
The Microwave Radiometer Technology Acceleration (MiRaTA) is a 3U CubeSat mission sponsored by the NASA Earth Science Technology Office (ESTO). The science payload on MiRaTA consists of a tri-band microwave radiometer and GPS radio occultation (GPSRO) experiment. The microwave radiometer takes measurements of all-weather temperature (V-band, 52–58 GHz), water vapor (G-band, 175–191 GHz), and cloud...
With significant advantages, the Global Navigation Satellite System (GNSS) radio occultation technique is a newcomer in the Earth's atmosphere sounding. Advancements bring new opportunities to Chinese atmospheric research since China is building its own GNSS-Compass navigation system. Focusing on the features of Compass, this work proposed a simplified algorithm to simulate occultation events between...
The experience gained from ROSA radio occultation instruments flying nowadays on three missions (OCEANSAT-2, SAC-D and MEGHATROPIQUE) is presented in this paper. Insights on different aspects of GNSS remote sensing like tropospheric sounding, ionospheric sounding are presented here, compared with state-of-the-art reference data (ECMWF, colocations). Further insight on ROSA instrument from in-flight...
ROSA is a dual-frequency GPS receiver developed for space applications and tailored for GPS radio occultation studies. It is developed and manufactured by Thales Alenia Space Italia under a contract with the Italian Space Agency (ASI) and is designed to establish accurate global profiles of temperature and water vapour in the lower atmosphere. Moreover, ROSA antenna extended coverage allows the retrieval...
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