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10 588 (0,068s)

Result

Spatial Correlation of Vertical Gradient of Refractivity on Large Scales

Spatial distribution maps of the vertical gradient of atmospheric refractivity?tropospheric propagation, atmospheric refractivity, refractivity gradient, spatial reanalysis. Spatial correlation of the ...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2015
  • D
Result

One-year Statistics of Atmospheric Refractivity in The Lowest Troposphere

gradient is shown. Refractivity gradient statistics are compared with the quantilesAtmospheric refractivity significantly influences the propagation of electromagnetic waves in atmosphere. ITU-R recommends using s...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2009
  • D
Result

Statistics of Lower Atmosphere Refractivity in Czechia

Results of the measurement of atmospheric refractivity in a lower 80m layer of atmosphere are presented. Daily and monthly variability of refractivity and of its vertical gradient is shown. Refractivity statistics ...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2005
  • D
Result

Refractive index measurements in the lowest troposphere in the Czech Republic

of the refractive index and its vertical gradient are presented. Seasonal and diurnal variation of the refractivity statistics is shown.The paper presents the results of measurement of the atmospheric refractive i...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2006
  • Jx
Result

Statistics of the radio refractivity derived from Prague-Libus radiosounding data

Vertical gradient of radio refractivity in the lowest 100 m is derived from the meteorological radiosounding data. Diurnal, monthly, and annual distributions are presented and the elative role of the dry and wet components of the

JA - Elektronika a optoelektronika, elektrotechnika

  • 2003
  • Jx
Result

Refractive index measurements in the lowest troposphere in the Czech Republic

of the refractive index and its vertical gradient are presented. Seasonal and diurnal variation of the refractivity statistics is shown.The report presents the results of measurement of the atmospheric refractive ...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2006
  • Jx
Result

Estimation of Radio Refractivity Profile Gradient From Multiple LOS Links Using Artificial Neural Networks - First Results

The question of a vertical refractivity gradient estimation is discussed herein. Artificial neural networks have been used as a tool to verify the existence of an unambiguous relationship between the vertical refractivity <...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2012
  • D
Result

Optical gradient of the trapezium-shaped NaNbO3 thin films studied by spectroscopic ellipsometry

Ellipsometric studies of the optical gradient of NaNbO3 thin films were performed in the photon energy range of 1.24?4.96 eV. Effective values of the complex refractive index and thickness nonuniformity, roughness, and depth profile...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2008
  • Jimp
Result

Method of phase gradient radiography and arrangement of an imaging system for application of the method

of a system of pixels, while the difference between the position of a non-refracted microbeam detected without the examined object and the position of a refracted microbeam detected with the examined object defines refraction

Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

  • 2021
  • P
  • Link
Result

Spatial correlation of vertical gradient of refractivity on large scales

Spatial distribution maps of the vertical gradient of atmospheric refractivity are derived from a global dataset of meteorological quantities as given by ERA-Interim reanalysis. Spatial correlation of the gradient on large ...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2015
  • D
  • Link
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