Technical Research on ISS Russian Segment

Experiment Infotekh


Objective:

  • Study of conditions of S band radio signal passage through the ISS Moscow radio link.
  • Development test of a method of data downlink at a rate of 4MB/s.

Tasks:

  • Study of characteristics of S band radio signal propagation from the ISS RS through the ISS-Moscow radio link depending on the ionosphere condition, light-shadow situation, ISS distance and attitude.
  • Modification of the ground S band receiving channel and its introduction into hardware/software complex UniScan-36.
  • Organization and conduct of test operations to receive data from the ISS RS in Moscow using the ground hardware/software complex UniScan-36 and onboard TM/TC unit (a transceiver with antenna on a mechanical adapter) of Rokviss hardware.
  • Organization and holding sessions to downlink data with digital images of URAGAN experiment (in case of successful completion of test operations).

Hardware Used:

Onboard Rokviss hardware consisting of:

  • manipulator monoblock;

  • transceiver with antenna on a mechanical adapter (TM/TC unit);
  • onboard compute OBC;
  • cable set.

Ground hardware segment :

  • Hardware/software complex UnitScan-36 located in Moscow.
    The ground receiving channel consisting of antenna/feeder device and a low-noise S band amplifier-converter in UniScan-36 shall provide reception, processing and record of the digital flow transmitted from ISS at a rate of 4MB/s.

Expected Results:

Increase of the channel data flow to downlink data to the ground through the transfer to a higher frequency range of transceivers (S band).

Experiment Results:

Rokviss hardware operation data transmitted via TM/TC unit (up to 1GB).

ISS Crew


Shannon Walker WALKER
Shannon



leg Novitskiy Novitskiy
leg



Petr Dubrov Dubrov
Petr



Mark Vande Hei Vande Hei
Mark



Michael Hopkins Hopkins
Michael



Victor Glover Glover
Victor



Soichi Noguchi Noguchi
Soichi