Calculation of optimal operating frequencies of a communication radio line according to oblique ionosphere sounding

被引：0
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作者：
G. G. Vertogradov
V. P. Uryadov
E. G. Vertogradova
机构：
[1] The South Federal University,
[2] Radiophysical Research Institute,undefined
来源：
Radiophysics and Quantum Electronics | 2008年 / 51卷
关键词：
Spectral Power Density; Chirp Signal; Partial Beam; Maximum Observable Frequency; Geomagnetic Activity Level;
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摘要：
A hardware-software complex for real-time automatic determination of the optimal operating frequencies of a communication radio line according to oblique chirp ionosphere sounding is created. Path tests of the chirp complex on midlatitude radio lines are performed. Bit error probability and the reliability of HF communication for narrow-band and broadband communication systems are estimated from the results of oblique chirp sounding. It is shown that the quality of a communication channel greatly depends on the ratio of the regular and fluctuation components of a signal, as well as on the magnetic activity level. The created chirp complex can be used as a part of the ionospheric-wave and frequency-control service for dynamic management of the radio-line frequency resource in the interests of efficient operation of different-purpose radioelectronic systems.
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