Detection of UAVs, including those flying in radio silence mode (Autonomous mode), by active radar.


  1. The field of view in the horizontal plane - 0...360°.
  2. The field of view in the vertical plane - 0...90°.
  3. The resolving power on range - 50m.
  4. The speed resolution is 3m/s.
  5. MSE of range estimation is not more than 10m.
  6. SKO speed estimates-not more than 0,6m/s.
  7. SKO azimuth assessment-no more than 2°.
  8. SKO evaluation of the angle of the place-no more than 6°.
  9. Information update period-no more than 3 seconds.
  10. The radius of the detection zone is 500m.


  • possibility of integration into a distributed network of object protection;
  • low-power short-range detection.

With the development of modern technologies on creation and use of unmanned aerial vehicles (UAVs), protection of the airspace of various facilities against unauthorized entry of foreign drones is becoming more and more important. Visually unobtrusive quadcopters are small in weight and size, meanwhile they may carry photo and video equipment for covert shooting, explosive devices, flyers, etc. Various methods are used to detect UAVs, in particular active radar-location.

Purpose and principle of operation

“AIR SHIELD DDR-4” radar ensures detection of UAVs penetrating the secured facilities, including those operating in radio silence mode, by an active radar. Such UAV detection system can be successfully used to protect industrial facilities, hydroelectric power stations, airports, stadiums and other places with a massive presence of people.

The principle of operation of “antidrone” type radar is based on reflection of ultra-high-frequency radio waves from the quadrocopter’s parts, emitted and received by the device’s circular antenna. Thus, a protected air hemisphere is created over the secured facility with a radius of action of up to 500 meters and viewing angles of 360° horizontally and 90° vertically, continuously monitored by UAV monitoring system.

When a UAV appears in the secured airspace, radio signals are detected and identified. If any unauthorized interference is detected, an alarm is generated, drone’s current location, speed and direction of its flight are established. This information can be automatically transmitted to control channels suppression systems and data transmission of the UAV for its interception and neutralization.

Main advantages

Advantages of “AIR SHIELD DDR-4” radar include:
•    compact dimensions and weight of the device;
•    drone detector may be used in any weather conditions;
•    low level of electromagnetic radiation;
•    reliable detection of any UAVs flying in radio silence mode;
•    integration into the complex security system of the facility;
•    reasonable price in a similar class of equipment.

New methods and materials are constantly being developed, in particular special coatings, changing UAV geometry, etc., to protect drones against detection by means of radar-location. Therefore, it is desirable to use integrated security systems using various methods of detecting and neutralizing UAVs to ensure effective protection of the facilities.

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