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Scintillation of Extended Incoherent Sources
TwoFrequency Scintillation Effects
3 other sections not shown
altitude brightness distribution Brown and Twiss Codona coherence length cutoff decorrelation bandwidth defined distant source double path integral eclipse effect electric field exponential extended source Feynman path integral Figure finite-distance Fourier transform fourth moment Green's free space Fresnel scale Gaussian Geometry Green's function Hanbury Brown HFA contribution HFC term high spatial-frequency approximation high spatial-frequency correction incoherent source index of refraction intensity correlation function intensity fluctuations intensity interferometer intensity pattern LFA term low spatial-frequency approximation mean intensity mean-square phase shift outer scale phase screen plane wave power spectrum power-law structure function random medium receiver plane result saturated approximation scattering disk scintillation index scintillation theory shadow bands solar crescent source diameter spatial frequencies spatial scales standard intensity correlation strong scattering temporal thin screen tion tropopause turbulence spectrum Twiss terms two-frequency intensity correlation two-frequency intensity cross-spectrum variables wave equation Wave Propagation wavelength wavelength dependence weak scattering z)dz zero