Transionospheric simulator for strong scintillation conditions and its use in quantifying scintillation effects for GNSS systems
Transionospheric simulator for strong scintillation conditions and its use in quantifying scintillation effects for GNSS systems
- Author(s): H.J. Strangeways ; V.E. Gherm ; N.N. Zernov
- DOI: 10.1049/cp:20060261
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- Author(s): H.J. Strangeways ; V.E. Gherm ; N.N. Zernov Source: 10th IET International Conference on Ionospheric Radio Systems and Techniques (IRST 2006), 2006 p. 173 – 177
- Conference: 10th IET International Conference on Ionospheric Radio Systems and Techniques (IRST 2006)
- DOI: 10.1049/cp:20060261
- ISBN: 0 86341 659 4
- Location: London, UK
- Conference date: 18-21 July 2006
- Format: PDF
A transionospheric propagation model has also been developed which can calculate frequency spectra (power spectra) of the phase and level (log-amplitude) fluctuations in a transionospheric channel of propagation containing time-varying electron density irregularities which produce scintillations and is valid even for strong scintillation conditions. Computer codes have been created to calculate time correlation functions of the phase and log-amplitude fluctuations for real 3D models of the background ionosphere and the anisotropic inverse power law spatial spectrum of fluctuations of the electron density of the ionosphere. Calculated power spectra of these processes can then be employed to produce random time sequences of the log-amplitude and phase of the field. Examples of simulations and their use are presented for both weak and strong scintillation conditions.
Inspec keywords: satellite navigation; ionospheric electromagnetic wave propagation; time-varying channels; radiowave propagation
Subjects: Radiowave propagation; Satellite communication systems; Radionavigation and direction finding; Ionospheric electromagnetic wave propagation
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