Computer Science – Sound
Scientific paper
Jan 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jatp...56..103r&link_type=abstract
Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 56, no. 1, p. 103-114
Computer Science
Sound
2
Backscattering, Electron Density (Concentration), F Region, Imaging Radar, Radar Measurement, Atmospheric Sounding, Bayes Theorem, Elevation Angle, Radar Echoes
Scientific paper
Most methods using HF ground backscatter radar data to estimate the ionospheric bottomside electron density profile rely upon multi-frequency measurements of the minimum group delay. However, information of the same nature can also be extracted at a single frequency if the elevation angle can be precisely controlled. We outline the analysis of this technique, known as elevation-scan backscatter sounding. The relevant parameter estimation problem is studied using a Bayesian approach. We report on an experiment using the Losquet Island radar to illustrate this method. The performance is compared to ionosonde data. This technique provides a method of teledetection of the bottomside F-region electron density profile hundreds of km from the radar site; however, further development is needed to provide increased reliability of the estimates.
Landeau T.
Ruelle N.
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