TriG - A GNSS Precise Orbit and Radio Occultation Space Receiver
Abstract
The GPS radio occultation (RO) technique [1] produces measurements in the ionosphere and neutral atmosphere [2] that contribute to monitoring space weather and climate change; and improving operational weather prediction. The high accuracy of RO soundings, traceable to SI standards, makes them ideal climate benchmark observations. For weather applications, RO observations improve the accuracy of weather forecasts by providing temperature and moisture profiles of sub-km vertical resolution, over land and ocean and in the presence of clouds. JPL is currently flying a handful of RO instruments [3] on various satellites in Low Earth Orbit (LEO). Although these receivers have served to pioneer occultation measurements, various advances in technology and understanding of the RO technique along with availability of new signals from GPS and other GNSS satellites allow us to design an improved next generation space-based Precise Orbit Determination (POD) and RO receiver, the TriG receiver. The paper describes the architecture and implementation of the JPL TriG receiver as well as results obtained with a prototype receiver demonstrating key technologies necessary for a next-generation space science receiver.
Additional Information
© 2009 California Institute of Technology. The work was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. Special thanks to Broad Reach Engineering for their advancements to the BlackJack design with their IGOR occultation instrument and for continued development of highreliability processors and the RF ASIC chip. Copyright 2009 California Institute of Technology. Government sponsorship acknowledged.Attached Files
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Additional details
- Eprint ID
- 21729
- Resolver ID
- CaltechAUTHORS:20110112-110312644
- Created
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2011-01-31Created from EPrint's datestamp field
- Updated
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2019-10-03Created from EPrint's last_modified field