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A localized space‐frequency algorithm for computerized ionospheric tomography
Author(s) -
Na Helen R.,
Biswas Chaitali
Publication year - 1996
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/96rs02537
Subject(s) - ionosphere , algorithm , tomography , computer science , resolution (logic) , image resolution , fourier transform , remote sensing , frequency domain , physics , optics , geology , artificial intelligence , computer vision , geophysics , quantum mechanics
Ionospheric tomography is a rapidly developing technique for imaging ionization distributions. Owing to the system configuration, the resolving capability of these systems is still limited. A number of reconstruction algorithms have been developed which strive to form high resolution images by enhancing the available data with information provided by model ionospheres. This paper presents a new Fourier domain algorithm for ionospheric tomography which uses unique characteristics of ionospheric spectra to enhance the reconstructions. Unlike most model based algorithms, this solution is not limited to a linear combination of model ionospheres and data. This algorithm also uses a localized approach which enables reconstructions of varying resolution in different regions of the ionosphere.