Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2020. No. 5
Full text in Russian (pdf)
Numerical simulation of measurements of an on-board low-frequency transmitter wave fields strength in the Ionosphere using a sub-satellite receiver
A. V. Moshkov
Kotelnikov Institute of Radioengineering and Electronics of the Russian Academy of Sciences, Mokhovaya 11-7, Moscow 125009, Russia.
The paper is received on May 10, 2020
Abstract. Projects of active experiments in the ionosphere and the magnetosphere of the Earth and planets often include powerful low-frequency transmitters installed on board a spacecraft. Such sources are very effective, but their radiation is extremely heterogeneous in space because of an anisotropy of the ionospheric plasma due to the presence of the magnetic field of the Earth. A sub-satellite with onboard receiving equipment is often suggested as a measurement probe. Such a micro-satellite makes periodic movements near the main spacecraft, moving away or approaching it. This paper is devoted to numerical modeling of the process of measuring the low-frequency field strength of the specific active experiment using such a sub-satellite. It is proposed to use a 20 m loop as a transmitting antenna. The results of the simulation can help, in particular, in a correct choice of the onboard transmitting antenna orientation. It is shown that in case of a high latitude orbit of the satellite, a choice of orientation of the loop antenna parallel to this orbit plane can make it very difficult to measure field strength in the far zone of the transmitter. Such measurements are only possible in a relatively narrow low latitude range when the sub-satellite is inside the Storey cone of the transmitter. All calculations were performed in linear approximation using the cold magneto-active plasma model.
Key words: ionosphere, on-board low-frequency transmitter, sub-satellite, plasma resonances, Storey cone.
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Moshkov A.V. Numerical simulation of measurements of an on-board low-frequency transmitter wave fields strength in the Ionosphere using a sub-satellite receiver. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2020. No. 5. Available at http://jre.cplire.ru/jre/may20/12/text.pdf. DOI: https://doi.org/10.30898/1684-1719.2020.5.12