Theory of VHF (Very High Frequency) Scattering by Field-Aligned Irregularities in the Ionosphere

摘要

The theory which describes the scattering of VHF radiowaves by anisotropic irregularities aligned along the earth's magnetic field is presented and applied to treat auroral scatter. Results which show the aspect sensitivity, polarization effects, antenna bandwidth effects and frequency dependence of auroral are presented. Keywords include: Field Aligned Scatter, Auroral Scatter, Anisotropic Scatter, and VHF Propagation.