Backpropagation Processing of GPS Radio Occultation Data

Ao, Chi O. and Hajj, G. A. and Meehan, T. K. and Leroy, S. S. and Kursinski, E. R. and del la Torre Juarez, M. and Iijima, B. A. and Mannucci, A. J. (2002) Backpropagation Processing of GPS Radio Occultation Data. In Proceedings First CHAMP Science Meeting, Potsdam, Germany.

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Abstract

We provide an assessment of the backpropagation (BP) method for processing GPS radio occultations using simulations as well as recent data from CHAMP and SAC-C. It is found that BP gives improved retrievals over the standard Doppler technique, even when multipath ambiguities are not completely removed. In addition, by being an amplitude-weighted algorithm, BP is robust in the presence of receiver errors that arise when signals with low SNR are tracked.

Keywords:	backpropagation end-to-end simulation lower troposphere multipath occultation tracking error
Subjects:	Publications
ID Code:	200212005
Deposited By:	Manipon, Gerald John M.
Deposited On:	06 December 2002