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Numerical computation of the electromagnetic bias in GNSS-R altimetry

Author
Ghavidel, A.; Schiavulli, D.; Camps, A.
Type of activity
Journal article
Journal
IEEE transactions on geoscience and remote sensing
Date of publication
2016-01-01
Volume
54
Number
1
First page
489
Last page
498
DOI
https://doi.org/10.1109/TGRS.2015.2460212 Open in new window
Project funding
Aplicaciones avanzadas en radio ocultaciones y dispersometría utilizando señales GNSS y otras señales de oportunidad
Repository
http://hdl.handle.net/2117/81812 Open in new window
URL
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7194801 Open in new window
Abstract
In radar altimetry, the electromagnetic (EM) bias is originated by the smaller reflectivity of wave crests than troughs; thus, the average sea surface height is underestimated. Bias uncertainty is currently the largest factor in altimetry error budgets. The EM bias in a bistatic forward-scattering configuration at L-band, such as in Global Navigation Satellite Systems Reflectometry (GNSS-R) altimetry, remains one of the major sources of uncertainty in the altimetry error budget. In this paper, t...
Citation
Ghavidel, A., Schiavulli, D., Camps, A. Numerical computation of the electromagnetic bias in GNSS-R altimetry. "IEEE transactions on geoscience and remote sensing", 01 Gener 2016, vol. 54, núm. 1, p. 489-498.
Keywords
Backscattering, Electromagnetic bias, Elevation, Global Navigation Satellite Systems-Reflectometry (GNSS-R), Hydrodynamic modulation, Ocean altimetry, Ocean surface, Rough-surface, Satellite, Scattering, Sea-state bias, Surface tange measurements, Waves
Group of research
RSLAB - Remote Sensing Lab

Participants