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First experience on spatial discrimination of large-scale natural elf interference on the example of two-point measurements of the magnetic field of an artificial ionospheric source

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Abstract

We present the results of an experiment on the generation of extremely low-frequency (ELF) electromagnetic fields at frequencies near the first Schumann resonance upon the ionosphere modification by modulated powerful radio emission. The reception was performed at two sites spaced by 14 km in the distance from “SURA” facility. It was found that the natural noise at different reception sites is highly correlated, which allows one to achieve the noise suppression by about an order of magnitude by subtracting the measurement results. We demonstrate the opportunities of spatial discrimination of the interference upon the two-site reception of the “small-scale” field of an artificial ionospheric source. The directions of future studies and possible applications are discussed.

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Authors and Affiliations

  1. Radiophysical Research Institure, Nizhny Novgorod, Russia

    S. V. Polyakov, B. I. Reznikov & Yu. V. Shlyugaev

  2. St.-Petersburg Branch of the Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation of the Russian Academy of Sciences, St. Petersburg, Russia

    E. A. Kopytenko

Authors
  1. S. V. Polyakov
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  2. B. I. Reznikov
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  3. Yu. V. Shlyugaev
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  4. E. A. Kopytenko
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radio.zika, Vol. 49, No. 12, pp. 1030–1042, December 2006.

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Polyakov, S.V., Reznikov, B.I., Shlyugaev, Y.V. et al. First experience on spatial discrimination of large-scale natural elf interference on the example of two-point measurements of the magnetic field of an artificial ionospheric source. Radiophys Quantum Electron 49, 937–948 (2006). https://doi.org/10.1007/s11141-006-0126-x

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  • DOI: https://doi.org/10.1007/s11141-006-0126-x

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