The simulation of off-great circle HF propagation effects
The simulation of off-great circle HF propagation effects
- Author(s): N.Y. Zaalov ; E.M. Warrington ; A.J. Stocker
- DOI: 10.1049/cp:20030033
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- Author(s): N.Y. Zaalov ; E.M. Warrington ; A.J. Stocker Source: Twelfth International Conference on Antennas and Propagation (ICAP 2003), 2003 p. 132 – 134
- Conference: Twelfth International Conference on Antennas and Propagation (ICAP 2003)
- DOI: 10.1049/cp:20030033
- ISBN: 0 85296 752 7
- Location: Exeter, UK
- Conference date: 31 March-3 April 2003
- Format: PDF
Observations over recent years have established that large scale electron density structures are a common feature of the polar cap F-region ionosphere. These structures take the form of convecting patches and arcs of enhanced electron density which form tilted reflection surfaces for HF radiowaves, allowing off great circle propagation paths to be established. Numerical ray tracing has been employed to simulate the effects of these structures on the ray paths of the radiowaves. The simulations have reproduced the precise character of experimental observations of the direction of arrival over a propagation path within the polar cap and of oblique ionograms obtained over the same path.
Inspec keywords: radio direction-finding; electron density; HF radio propagation; ray tracing; F-region; ionospheric electromagnetic wave propagation
Subjects: F-region; Radiowave and rocket soundings of the ionosphere; Ionospheric electromagnetic wave propagation; Radionavigation and direction finding; Radiowave propagation
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