The LAGRANGE Radio-Occultation Receiver: Signal Modeling and Tracking Algorithms Simulation

Andrea Di Cintio, Emilio Banfi, Lorena Martinelli and Stefano Monti

Abstract:	The GNSS Radio-Occultation principle applied to Earth's atmosphere monitoring is based on the measurement of the phase delay resulting from transmission of the GNSS signal through the atmosphere. Laben S.p.A. is currently developing the LAGRANGE GNSS Receiver for the Atmospheric Sounding application, and has performed a specific study devoted to: (1) the detailed definition of User and Measurement Requirements; (2) the assessment, simulation and development of dedicated Signal Processing algorithms for acquisition and tracking of strongly attenuated and dynamically-stressed GNSS signals; (3) the development and validation of a Realistic Receiver Software Model, to be integrated in the End-to-End GNSS Occultation Performance Simulator (EGOPS); (4) the definition of the Radio-Occultation SW Requirements of the LAGRANGE Receiver and of the related On-board Software Development Plan. The Radio-Occultation Software is currently undergoing the Architectural and Detailed design process. The first hardware/software integration on a breadboard receiver and subsequent first functional and performance verification tests are foreseen by end 2002/beginning 2003. The LAGRANGE Radio-Occultation Flight Model will then be developed and manufactured for installation as companion payload on the COSMO/SkyMed satellites.
Published in:	Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002) September 24 - 27, 2002 Oregon Convention Center Portland, OR
Pages:	2266 - 2277
Cite this article:	Di Cintio, Andrea, Banfi, Emilio, Martinelli, Lorena, Monti, Stefano, "The LAGRANGE Radio-Occultation Receiver: Signal Modeling and Tracking Algorithms Simulation," Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002), Portland, OR, September 2002, pp. 2266-2277.
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