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Communication system for nanosatellites CUBESAT

DOI 10.18127/j20700784-201812-14

Keywords:

А.М. Golikov – Ph.D. (Eng.), Associate Professor, Senior Research Scientist, Tomsk State University of Control Systems and Radioelectronics
E-mail: gol@rts.tusur.ru
М.D. Medvedev – Student, Department of Radio Engineering Systems, Tomsk State University of Control Systems and Radioelectronics


Timely delivery to information obtained in an orbit to the consumer requires creation of effective system of inter-satellite communication. Perspective methods of inter-satellite systems of relaying of a signal are the self-organized data transmission network built on the basis of the network standard of the second generation of IEEE 802.16m. For creation of MKA network the system of bilateral satellite communication DVB-RCS allowing to operate MKA group for hundreds of kilometers removed from each other on distance and isn't worse to transfer data with speed from 100 Mbit/sec. up to 1 Gbit/sec. on the direct channel and 5 Mbit/sec. via a reverse channel with bit probability of a mistake of BER 10-8 can be also used. Use of MKA groups – nanosatellites is perspective. In the system of a radio communication it is supposed to use three types of systems. The global space system of mobile communication on the lines «The ISS – CubeSat 3 U», «CubeSat 3 U – CubeSat 3U» and «CubeSat 3 U – Earth» – on the basis of the standard of bilateral adaptive broadband system of data transmission of the IEEE standard 802.16m [1–3]. Communication systems are used for creation of mobile network bilateral adaptive broadband systems of data transmission of the IEEE 802.16m standard for creation of data transmission networks for «swarm» on the lines «The ISS – CubeSat 3 U» during removal of «swarm» of CubeSat 3U from the ISS to 10 km and 200 km and also on lines «by CubeSat 3 U – CubeSat 3U» «swarm» with data transmission in network on Mash technology in radiuses up to 10 km and 200 km and communication of «swarm» of CubeSat 3 U with Earth, also creation of single bilateral data lines «the ISS – CubeSat 3 U», «CubeSat 3 U – Earth» and «CubeSat 3 U – CubeSat 3U». In work two types of satellite communication systems allowing to provide inter-satellite communication for ballistic related groups ISS are considered. Noise stability researches for the perspective DVB-RCS satellite communication system for types of digital modulation of QPSK, 8PSK, 16APSK, 32APSK for different SNR are for the first time conducted. It is shown that at modulation 32APSK the largest speed of data transmission is provided. The research of the second generation of the IEEE 802.16m systems is conducted the possibility of use of such systems as the adaptive broadband communication systems using Mach technology for the organization of communication ballistic of the MKA connected groups is shown.

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