Propagation and Resonance Parameters of the Earth-Ionosphere Cavity - Spherical Versus Planar Stratification of the Ionosphere.
Final rept. (Part 2) 16 Nov 69-15 Nov 72,
RHODE ISLAND UNIV KINGSTON DEPT OF ELECTRICAL ENGINEERING
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In treating ELF wave propagation in the Earth-Ionosphere cavity, the flat earth approximation may be derived from the exact equations for the spherical cavity by introducing a second order or Debye approximation for the spherical Hankel functions. In the frequency range 3 to 30 Hz, however, the assumed conditions for the Debye approximation are not satisfied. For this reason an exact evaluation of the spherical Hankel functions is used to study the effects of the flat earth approximation on various propagation and resonance parameters. Author
- Radiofrequency Wave Propagation
- Radio Communications