Frequency Shift During Ionospheric Propagation of Radio Waves of Short Wave Range.
AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS
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The frequency shift during reflection of radio waves from an ionospheric layer varying in time are considered. Plane stratified and spherically stratified isotropic layers are analyzed for oblique incidence of the radio wave as well as the anisotropic layer for vertical incidence. The method for the determination of the temporal variation of local electron concentrations from simultaneous measurements of frequency shift and group time delay in the ionosphere at two neighboring frequencies is described. Author
- Radiofrequency Wave Propagation