Ground-wave propagation at medium and low frequencies

Ground-wave propagation at medium and low frequencies

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General methods of computing tropospheric diffraction fields in atmospheres whose modified refractive index increases monotonically with height are indicated, new ground-wave-propagation curves are predicted, and the effective-Earth-radius transition at medium and low frequencies is given.


    1. 1)
      • H. Bremmer . On the theory of wave propagation through a concentrically stratified troposphere with a smooth profile. Pt. 1—Discussion of the extended WKB approximation. NBS J. Ret. , 467 - 482
    2. 2)
      • Pt.2-Expansion of the rigorous solution. NBS J. Ret. , 31 - 52
    3. 3)
      • (1967) , Documents of the 11th plenary assembly. Vol.2—Propagation.
    4. 4)
      • (1959) , Atlas of ground-wave propagation curves for frequencies between 30 and 10 000 Mc/s.
    5. 5)
      • G. Millington . Propagation at great heights in the atmosphere. Marconi Rev. , 143 - 160

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