Non-radiating UAV detection and counteraction system

Wide use of UAVs for civil, special and military purposes causes an urgent need to develop a system for detection, identification and “targeted” suppression of UAVs.

One of the promising UAV detection areas is developing non-radiating radar systems using reflected signals of third-party transmitters (TV and radio stations, cellular communication stations, etc.). Such systems have been deployed by Germany (TwInvis) and Sweden (AULOS).


  • detects aerial vehicles 24/7 regardless of weather conditions, covertly from radiotechnical or visual reconnaissance;
  • identifies aerial vehicle type/class;
  • generates target designations to electronic warfare stations.

  • receiving stations package detecting UAVs in their allocated zones;
  • jamming stations;
  • central data processing station that combines information from all receivers, controls the receivers and jamming stations;
  • local and remote system control.

  • In-house software for:
    • target class identification by reflected signal frequency characteristics and motion parameters using AI elements.
    • suppression of jamming signals in the reflected signal reception channel;
    • adaptive correlation signal processing;
    • selection of optimal sounding signals from a group of available signals;
    • target trajectory tracking;
  • System configuration adaptation to the client’s requirements;
  • Possibility to use commercial or custom equipment.


Compared to other systems developed in Germany (TwInvis), Sweden (AULOS), Russia etc., the system proposed by VIMPEL Interstate Corporation has unique features:

  • Multi-station structural principle that helps optimize the number of stations depending on the client’s requirements;
  • Self-learning intelligent target identification system;
  • The system is complemented with a remote dual-purpose emission source;
  • Stations may be implemented in maintenance-free, compact or covert versions;
  • Low power consumption enables use of independent power sources;
  • Low cost.

  • All-weather radar object detection and plotting of its trajectory in the covert non-radiating operation mode;
  • Possibility of implementation in a version protected against visual reconnaissance;
  • Detection of very small UAVs, including quadcopters, at a maximum range of 5 km;
  • Detection of medium-sized UAVs (with a maximum span of 1 m) at a maximum range of 10 km;
  • Surveillance modes: continuous sectoral or periodic circular;
  • Maximum space surveillance frequency 10 Hz;
  • Maximum range determination accuracy 10 m;
  • Maximum azimuth determination accuracy 2 deg.;
  • Maximum speed determination accuracy 1 m/s;
  • Number of simultaneously tracked targets — over 50;
  • Accuracy of measured object positioning against UTC scale — no worse than 1 m/s;
  • Possibility to determine UAV equipment emission frequencies and additional tracking using these signals;
  • Possibility of interfacing (data output) with the jamming station at the primary and/or secondary processing level.