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Mode Coupling in Partial Reflections From the Ionosphere at Vertical Incidence
Author(s) -
Connolly Denis J.,
Tanenbaum B. Samuel
Publication year - 1972
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/rs007i004p00457
Subject(s) - ionosphere , ionospheric reflection , electron density , amplitude , radio wave , reflection (computer programming) , physics , perturbation (astronomy) , computational physics , discontinuity (linguistics) , mode (computer interface) , coupling (piping) , electron , atomic physics , optics , mathematics , geophysics , materials science , mathematical analysis , ionospheric heater , quantum mechanics , operating system , computer science , metallurgy , programming language
The effect of mode coupling has been calculated for radio waves partially reflected from the lower ionosphere at vertical incidence. Calculations were made for parameters appropriate to the partial reflection experiments [ Belrose , 1970]. The four reflection coefficients (two direct and two coupled) are calculated for a plane discontinuity using a matrix perturbation analysis. The ratios of coupled to direct reflection coefficients are calculated for a general one‐dimensional reflecting layer using the coupled equations of Clemmow and Heading [1954]. At the highest electron density considered, 10 4 cm −3 , about 10% of the reflected extraordinary wave amplitude might be due to coupling from the incident ordinary wave. The effect is smaller at lower electron density.