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Impulse response for ionospheric reflection with a sech 2 profile
Author(s) -
Vogler Lewis E.
Publication year - 1984
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/rs019i006p01543
Subject(s) - ionosphere , ionospheric reflection , physics , impulse (physics) , reflection (computer programming) , impulse response , electron density , computational physics , fourier transform , optics , magnetic field , electron , geophysics , mathematics , mathematical analysis , classical mechanics , computer science , ionospheric heater , quantum mechanics , programming language
The impulse response for reflection from an ionospheric layer with a sech 2 electron density profile is investigated. A constant electron collision frequency is assumed, and approximate results are obtained for reflection at oblique incidence under the influence of a vertical earth's magnetic field. Fast Fourier transform techniques are used to evaluate the impulse response, and an asymptotic expression is derived for the envelope of the response. Numerical examples are shown for some representative cases of E and F layer reflection.