The propagation of fading waves

摘要: Abstract A scalar wave with random variations of amplitude and phase across the wave-front is assumed as a simple model radio after it has left ionosphere. The second-order moments in-phase quadrature components fluctuating part field are found using Fresnel diffraction formula. It that these two have joint Gaussian distribution, parameter ρN, oalled intrinsic correlation fading, introduced; this serves measure ecoentricity ellipse constant probability. shown ρN pattern produced by distribution intensity proportional to spatial function fluctuations over wave-front. As propagates tends zero. for given irregularity size wavelength, irregularities may be supposed situated at any height, up certain maximum which = 1. An analysis day time fadi...