Products

Ground Segment Channel Emulator

Keywords: API, AWGN, BIST, CCSDS 131.2-B, CCSDS 401.0-B, Doppler effect, Ethernet, GUI, non-linear distortion, Phase noise, rack-mountable, SMA

The Ground Segment Channel Emulator is a comprehensive and configurable instrument for emulation of the impairments which affect the telecommunication in space applications.

The Ground Segment Channel Emulator emulates Additive White Guassian Noise (AWGN) and  Doppler effect caused by the communication channel, and also phase noise and non-linear distortion introduced by the transmitter unit. In particular, the Doppler effect emulates the change in relative velocity between transmitter and receiver, the phase noise emulator is dedicated to non-idealities of transmitter local oscillators, and the non-linear distortion section reproduces the effects of the transmitter power amplifier. The analog input signal is converted into digital domain, it is elaborated with digital signal processing algorithms emulating the different impairments contributions, and then it is converted back to the analog domain for the output.

The Ground Segment Channel Emulator can be configured, controlled and monitored remotely with a GUI or with dedicated API through Ethernet interface by means of external host PC.

The Ground Segment Channel Emulator has been developed within the framework of an ESA project.

Key features

 
  • Analog input/output frequency up to 1 GHz
  • Signal bandwidth up to 700 MHz
  • AWGN supports ES/N0 in the range [-2 dB 30 dB] with reference to CCSDS 131.2-B standard
  • Doppler effect supports configurable frequency offset in the range of +/- 1 MHz and rate up to 50 kHz/s
  • Phase noise compliant with CCSDS 401.0-B and with configurable noise power level
  • Non-linear distortion supports configurable Input Back-Off (IBO) in the range [0 dB; 24 dB]
  • Built-In Self Test (BIST) available based on internal generation of input sinusoidal signal with configurable frequency
  • Remote configuration control and monitoring via GUI or API through Ethernet interface
  • 50-Ohm SMA female connectors for analog signal input (e.g.; from transmitter system) and output (e.g.; to receiver system)
  • 2u 19-inch rack-mountable metallic case

Other information

Technologies/Applications

  • CCSDS 131.2-B

Competencies

  • FPGA/ASIC design
  • Verification
  • Software design (system modelling)
  • Digital signal processing

Call us at 0039 050 6220532 or email us at request@ingeniars.com