dorsal/arxiv
View SchemaA PIM-aided Kalman Filter for GPS Tomography of the Ionospheric Electron Content
| Authors | Giulio Ruffini, Lidia Cucurull, Alex Flores, Antonio Rius |
|---|---|
| Categories | |
| ArXiv ID | physics/9807026 |
| URL | https://arxiv.org/abs/physics/9807026 |
| DOI | 10.1016/S1464-1917(99)00013-6 |
Abstract
We develop the formalism for a PIM-based functional for stochastic tomography with a Kalman filter, in which the inversion problem associated with four-dimensional ionospheric stochastic tomography is regularized. For consistency, GPS data is used to select dynamically the best PIM parameters, in a 3DVAR fashion. We demonstrate the ingestion of GPS (IGS and GPS/MET) data into a parameterized ionospheric model, used to select the set of parameters that minimize a suitable cost functional. The resulting PIM-fitted model is compared to direct 3D voxel tomography. We demonstrate the value of this method analyzing IGS and GPS/MET GPS data, and present our results in terms of a 4D model of the ionospheric electronic density.
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"abstract": "We develop the formalism for a PIM-based functional for stochastic tomography\nwith a Kalman filter, in which the inversion problem associated with\nfour-dimensional ionospheric stochastic tomography is regularized. For\nconsistency, GPS data is used to select dynamically the best PIM parameters, in\na 3DVAR fashion. We demonstrate the ingestion of GPS (IGS and GPS/MET) data\ninto a parameterized ionospheric model, used to select the set of parameters\nthat minimize a suitable cost functional. The resulting PIM-fitted model is\ncompared to direct 3D voxel tomography. We demonstrate the value of this method\nanalyzing IGS and GPS/MET GPS data, and present our results in terms of a 4D\nmodel of the ionospheric electronic density.",
"arxiv_id": "physics/9807026",
"authors": [
"Giulio Ruffini",
"Lidia Cucurull",
"Alex Flores",
"Antonio Rius"
],
"categories": [
"physics.geo-ph",
"physics.ao-ph"
],
"doi": "10.1016/S1464-1917(99)00013-6",
"title": "A PIM-aided Kalman Filter for GPS Tomography of the Ionospheric Electron Content",
"url": "https://arxiv.org/abs/physics/9807026"
},
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