Delta function excitation of waves in the earth's ionosphere | Zendy

Vidmar R. J. | Zendy; Crawford F. W. | Zendy; Harker K. J. | Zendy

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Delta function excitation of waves in the earth's ionosphere

Author(s) -

Vidmar R. J.,

Crawford F. W.,

Harker K. J.

Publication year - 1983

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/rs018i006p01337

Subject(s) - ionosphere , wave packet , physics , computational physics , envelope (radar) , wave propagation , modulation (music) , geophysics , optics , atomic physics , computer science , acoustics , telecommunications , radar

Excitation of the earth's ionosphere by delta function current sheets is considered, and the temporal and spatial evolution of wave packets is analyzed for a two‐component collisional F 2 layer. Approximations of an inverse Fourier‐Laplace transform via saddle point methods provide plots of typical wave packets. These illustrate cold plasma wave theory and may be used as a diagnostic tool since it is possible to relate specific features, e.g., the frequency of a modulation envelope, to plasma parameters such as the electron cyclotron frequency. It is also possible to deduce the propagation path length and orientation of a remote radio beacon.

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