Probabilistic tomography of atmospheric parameters from GNSS data
The objective of the work is the evaluation of the potential capabilities of navigation satellite signals to retrieve basic atmospheric parameters. A capillary study have been performed on the assumptions more or less explicitly contained in the common processing steps of navigation signals. A proba...
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| Format: | Doctoral Thesis |
| Language: | en |
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Alma Mater Studiorum - Università di Bologna
2011
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| Online Access: | http://amsdottorato.unibo.it/3922/ |
| Summary: | The objective of the work is the evaluation of the potential capabilities of navigation satellite signals to retrieve basic atmospheric parameters. A capillary study have been performed on the assumptions more or less explicitly contained in the common processing steps of navigation signals. A probabilistic procedure has been designed for measuring vertical discretised profiles of pressure, temperature and water vapour and their associated
errors. Numerical experiments on a synthetic dataset have been performed with the main objective of quantifying the information that could be gained from such approach, using
entropy and relative entropy as testing parameters. A simulator of phase delay and bending of
a GNSS signal travelling across the atmosphere has been developed to this aim. |
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