Title :
Reconstraction of spatial spectrum of troposphere non-uniformities on amplitude fluctuations transversal correlation functions
Author :
Alexeyev, G.A. ; Belobrova, M.V.
Author_Institution :
Usikov Inst. for Radiophys. & Electron., Nat. Acad. of Sci. of Ukraine, Kharkov
Abstract :
Work contains the analysis of possibilities of reconstruction spatial spectrums of troposphere non-uniformities on transversal correlation functions of satellite radio signal amplitude fluctuations. The theoretical analysis was carried out on the base of relations for electromagnetic plane wave in the weakly perturbed turbulent troposphere. The radio occultation inverse problem is reduced to Fredholm integral equation of the first type with a self-conjugate kernel. The numeral solution of this incorrect equation was executed by alpha-regularization method. Algorithm to be developed was made on model profiles. The reconstruction of real spatial spectrums was carried out on radio signal frequency spectrums.
Keywords :
Fredholm integral equations; atmospheric optics; atmospheric spectra; atmospheric techniques; atmospheric turbulence; correlation methods; inverse problems; perturbation theory; radio applications; signal reconstruction; troposphere; Fredholm integral equation; alpha-regularization method; electromagnetic plane wave; perturbed turbulent troposphere; radio occultation inverse problem; radiosignal frequency spectrum; satellite radio signal amplitude fluctuation; self-conjugate kernel; spatial spectrum reconstruction; transversal correlation function; troposphere nonuniformity; Electromagnetic analysis; Electromagnetic scattering; Fluctuations; Integral equations; Inverse problems; Kernel; RF signals; Satellite broadcasting; Signal analysis; Terrestrial atmosphere;
Conference_Titel :
Microwave & Telecommunication Technology, 2008. CriMiCo 2008. 2008 18th International Crimean Conference
Conference_Location :
Sevastopol, Crimea
Print_ISBN :
978-966-335-166-7
Electronic_ISBN :
978-966-335-169-8
DOI :
10.1109/CRMICO.2008.4676650