Modeling of ionospheric scintillation

A signal, such as from a GNSS satellite or microwave sounding system, propagating in the randomly inhomogeneous ionosphere, experiences chaotic modulations of its amplitude and phase. This effect is known scintillation. article reviews basic theoretical concepts simulation strategies for modeling scintillation phenomenon. We focused our attention primarily on methods connected with random phase screen model. For weak scattering regime ionospheric irregularities, single-phase model enables us to obtain analytic expression intensity indices, well statistical quantities characterizing strength scintillation-related fades distortions. In case multiple scattering, screens becomes handy tool obtaining these indices. both regimes, properties medium play an important role are discussed emphasis related geometric aspects. As illustration, approaches used global climatological GISM briefly discussed.