## Radio ray propagation in the ionosphere |

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### Contents

INTRODUCTION | 1 |

PROPAGATION IN A HOMOGENEOUS MEDIUM | 7 |

PHYSICS OF THE IONOSPHERE | 66 |

Copyright | |

5 other sections not shown

### Common terms and phrases

absorption amplitude Appleton-Hartree approximation assume auroras axis Chap circularly polarized coefficient collision frequency complex component consider coordinate corresponding critical frequency curves derivation direction of propagation discussion distance earth's magnetic field effects electric vector electron density ellipse energy equation expression external magnetic field extraordinary mode Fermat's principle free space function geomagnetic field given by Eq group path group velocity Hence homogeneous horizontal incident wave index of refraction integral introduce ionosphere isotropic maximum mc/sec method modulation normal index surface noted obtain optics ordinary mode packet particles perpendicular phase path plane wave Poynting vector problem propagation constant quantity radio ray path reflection reflection coefficient refractive index region rotation scale height shown in Fig shows signal sin2 slab Snell's law spherical stratified term theory tion transmitted unit vector variations vertical incidence wave normal whistler write zero