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PURPOSE of the COMPLEX

The complex provides collection of digital payload data from independent working highly informative ERS sensors and instruments for space exploration and scientific discovery aboard spacecraft, as well as transmission of these data to the ground-based receiving complex for further processing.

The onboard and ground-based equipment make up a complex for high-rate transmission of satellite information.

STRUCTURE of the COMPLEX

Onboard equipment comprise:

  • set of modules for onboard storage unit
  • radio transmitter
  • program-controlled antenna assembly with radio channel power amplifiers
  • control computer

Ground-based equipment — represents a unified complex, that can be configured to work with different kinds of ERS spacecraft and comprise:

  • reception/demodulation subsystem
  • subsystem for decryption, decoding and recording digital information
  • subsystem for control and processing of housekeeping information

SPECIFICATIONS of the СOMPLEX

Parameters
Altitude of operational circular orbits, km
up to 1200
Frequency range
Х; K; Kа
Payload data transmission rate, Mbit/s
1200; 900; 600; 450; 300; 225; 150
Onboard storage capacity necessary for one-time data reception over one channel, GB
no less than 1000