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Amplitude fluctuations in the theory of radio-wave refraction scattering

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Abstract

We consider some aspects of the theory of radio-wave scattering with respect to studies of radiation intensity fluctuations behind a random phase screen. The expressions for a piecewise approximation of the function of distribution of intensity fluctuations in the near zone and in the region of random focusing behind the screen are found. The expressions obtained are used to calculate the radio-wave scintillation index in these regions. The corresponding calculations are performed with allowance for the finite dimensions of external and internal scales of turbulent inhomogeneities of the phase screen. It is shown that the radio-wave refraction scattering, as a rule, is characterized by a pronounced random focusing of the radiation intensity behind the phase screen. However, under strongly developed turbulence of the radio-wave propagation medium (phase screen) the above phenomenon may be absent.

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Authors and Affiliations

  1. Radiophysical Research Institute, Nizhny Novgorod

    V. A. Alimov & A. V. Rakhlin

Authors
  1. V. A. Alimov
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  2. A. V. Rakhlin
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 39, No. 9, pp. 1114–1124, September, 1996.

This paper was supported by the Russian Foundation for Fundamental Research under project 95-02-03716.

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Alimov, V.A., Rakhlin, A.V. Amplitude fluctuations in the theory of radio-wave refraction scattering. Radiophys Quantum Electron 39, 744–751 (1996). https://doi.org/10.1007/BF02120855

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