HF guidance in the vicinity of F layer maximum during ionospheric disturbances
HF guidance in the vicinity of F layer maximum during ionospheric disturbances
- Author(s):
- DOI: 10.1049/cp:19970378
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- Author(s): Source: Tenth International Conference on Antennas and Propagation (ICAP), 1997 page ()
- Conference: Tenth International Conference on Antennas and Propagation (ICAP)
- DOI: 10.1049/cp:19970378
- ISBN: 0 85296 686 5
- Location: Edinburgh, UK
- Conference date: 14-17 April 1997
- Format: PDF
In the regular ionosphere the main characteristics of short wave propagation are described by the geometric-optic approach and have been studied sufficiently well. The existence of irregularities and disturbances of different forms complicates the propagation picture determining the scattering and diffraction effects. Despite widespread investigations of ionosphere irregular structure and its influence on radioelectronic systems the role of irregularities in ionospheric propagation has not yet been established fully. In the report experiments on oblique chirp sounding of the ionosphere, where the guidance effect of the Pedersen mode in the disturbed ionosphere was discovered, are presented. A theoretical explanation of the observed phenomenon is given and opportunities for the use of this effect for diagnostics of irregular structure in the ionosphere are also discussed. (4 pages)
Inspec keywords: ionospheric electromagnetic wave propagation; F-region; HF radio propagation; ionospheric disturbances; chirp modulation; atmospheric structure
Subjects: Ionospheric disturbances and modification experiments; Radiowave and rocket soundings of the ionosphere; Ionospheric structure; Ionospheric electromagnetic wave propagation; Radiowave propagation; F-region
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