THE MODEL OF A RADIO LINK "SPACE-TO-EARTH" WITH MORE INFORMATIVE FOR A LOW ORBIT SATELLITE

  • Igor Dmitrovich Savchenko Oles Honchar Dnipro National University
  • Anatoly Mikhailovich Kulabukhov Oles Honchar Dnipro National University
  • Viktor Alexandrovich Masalskiy Oles Honchar Dnipro National University
  • Aramais Viktorovich Tishchenko Oles Honchar Dnipro National University
Keywords: NANOSATELLITE, SATELLITE COMMUNICATION, RADIO ENERGY BALANCE, PHASED ARRAY ANTENNA S-BAND

Abstract

A proposed the model of a radioline “space-to-Earth” with more informative for a low orbit university nanosatellite. The radioline is modeled on a antenna of the high-frequency S-band. At present time, the tasks of creating radiolines “space-to-Earth” in the conditions of limited energy of satellites with more informativeness (for telemetry radiolines and information radiolines) constantly require increasing their capabilities. Various options are being developed to implement such a solution, ranging from increasing the data transmission time due to repeaters and developing new encoding methods and increasing the bandwidth of radio lines. One solution is to use middle or high gain antennas.

The model of a radioline is designed on the basis of the high-frequency (S-band) antenna. The calculations were carried out according to the international format of the AMSAT-IARU-Link-Model program. The calculation of the proposed the model consists of three basic conditions: the greatest loss of energy of the radio signal in free space, equivalent to isotropic radiating power and quality factor of the receiving station. The proposed model is built on the basis of a phased antenna array with a gain of 12 dBi for transmit from nanosatellite, the gain of the receiving antenna is 35 dBi. The results showed the ability to transmit up to 50 images of the Earth's surface per day. The use of a phased array antenna and the transition to the S-band allowed with smaller dimensions to increase the antenna gain and the rate of information transmission in communication sessions.

References

Антипенко Р. В., Першин М. О., Смоков Є. О. Оптимізація радіолінії супутникового зв'язку. Міжнародна науково-технічна конференція “Радіотехнічні поля, сигнали, апарати та системи”, розділ “Телекомунікація, радіолокація, навігація”. Київ. 2016 р. – С. 165–167. URL: http://www.kivra.kpi.ua/wp-content/uploads/file/rtpsas_2016/RTPSAS_2016_s5_t13.pdf.

AMSAT/IARU Annotated Link Model System. Jan A. King. URL: http://www.amsatuk.me.uk/iaru/AMSAT-IARU_Link_Model_Rev2.5.3.xls.

Себастьян Стофф, програма «Орбітрон» версія 3.71 - 2005.09.08 р. URL: http://www.stoff.pl/

Published
2019-12-30
How to Cite
Savchenko, I. D., Kulabukhov, A. M., Masalskiy, V. A., & Tishchenko, A. V. (2019). THE MODEL OF A RADIO LINK "SPACE-TO-EARTH" WITH MORE INFORMATIVE FOR A LOW ORBIT SATELLITE. Journal of Rocket-Space Technology, 27(4), 9-12. https://doi.org/10.15421/451902

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