Qascom

QA707: GNSS simulator supporting interference and authentication

QA707 is a fully configurable GNSS Software Defined Radio (SDR) simulator for flexible generations of GNSS signals, interferences and authentication schemes up to RF level. It runs in a laptop and, being fully software, enables a fast assessment of existing and new emerging scenarios. Optional software libraries support the analysis of interferences and the development of mitigation strategies in the receiver.

QA707

SIGNAL DECEPTION

Generation of pseudorange ramps on deception signals with configurable attenuation, Doppler and carrier phase offsets. Simulation syncronized attack

SIGNAL AUTHENTICATION SCHEMES

  • NMA - Navigation Message Authentication.
  • Fast authentication (signature at page level).
  • Slow authentication (signature at subframe level, 15 pages).
  • Configuration of navigation messages bits to be included in the signature, and where it should be placed.
  • Key configuration.
  • SAS - Signal Authentication Sequence (on Galileo).
  • Navigation message manipulation (optional).

JAMMING

  • Definition of power and timing.
  • AM period and duty cycle.
  • FM frequency central shift, variation amplitude and variation rate.
  • Bandwidth of wide band shaping component
    NMA - Navigation Message Authentication.

MULTI CONSTELLATION & FREQUENCY

  • Arbitrary number of channels.
  • GPS L1 & Galileo E1.
  • Galileo Commercial Service (optional module).
  • Configurable sampling frequency and format.
  • Configurable sampling frequency and format (full flexibility with SDR).
  • Scenarios based on Spirent SimGEN logged data.
  • Configurable orbits using RINEX files.

TRAJECTORIES

  • Static or dynamic scenarios.
  • Support NMEA input.