Over-the-horizon propagation of uhf radio waves above the sea (review)

Kukushkin, A. V.; Freilikher, V.; Fuks, I. M.

doi:10.1007/bf01036295

Cited by 1 publication

(2 citation statements)

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“…The radiation trapped into an evaporation duct is transferrable to a few hundred kilometers far over the horizon, while the measured-field power above the duct decreases drastically. However, quantitative estimates show that the radiated power inside the duct drops notably faster, and the difference between the field values inside and above the duct turns out to be much smaller compared with the calculations performed within the framework of a simple model [4].…”

Section: Introductionmentioning

confidence: 87%

“…Allowance for this mechanism has been the subject in a number of papers [4,5] in which analytical expressions describing the field attenuation with the distance along the surface and its height redistribution were obtained within the framework of the perturbation method. The used approach made it possible to allow for the redistribution of energy only between the first several modes (usually, only the scattering of the first mode).…”

Section: Introductionmentioning

confidence: 99%

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Microwave scattering by tropospheric fluctuations in an evaporation duct

Ivanov

Shalyapin

Levadny

2009

Radiophys Quantum El

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Numerical analysis of the centimeter wave propagation in an evaporation duct with allowance for scattering by correlated turbulent fluctuations of the tropospheric refraction index is carried out. It is shown that energy leakage from the duct leads to an additional decrease in the average wave power. The amplitude of random power variations above the duct turns out to be significantly higher compared with the variations inside the duct. An increase in the vertical correlation radius of refraction-index inhomogeneities leads to an increase in the vertical correlation radius of the radio-wave intensity.

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Section: Introductionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%