Detect and Avoid Radar

To improve safety in airspace, there are detection technologies that alert the pilot and then cause them to take evasive action. This technology will be particularly essential for unmanned air traffic. One example of such technology is the Detect and Avoid Radar and the Due Regard Radar. EASA is also proposing such systems.

Detect and Avoid Radar

The Detect and Avoid Radar (DAA) enables the operator of a remotely piloted flying object to safely integrate their unmanned system into non-segregated airspace. It improves the detection of the pilot through a system that surpasses the human eye in terms of range, probability of detection and accuracy.

This ensures increased flight safety and the detection of every flying object in the airspace. This technology is also weatherproof and can be used regardless of the weather.

Due Regard Radar

The Due Regard Radar (DRR) is an air-to-air radar designed to allow remotely piloted aircraft to fly in international airspace. The DRR consists of an Active Electronically Scanned Array (AESA) antenna with two panels and a Radar Electronics Assembly (REA). The system enables the pilot of the remote-controlled aircraft to recognize aircraft over the same field of view as a normal pilot. It virtually replaces the pilot's eyes. This technology allows the system to track multiple targets while continuing to search for new aircraft. Flight tests have been carried out with both manned and unmanned aircraft.

DRR is ultimately a key component of the entire aircraft Detect and Avoid architecture. The DAA must be able to detect aircraft with and without transponders and then take evasive action. The detection and tracking of cooperative (transponder-equipped) aircraft is performed, for example, by the Traffic Collision Avoidance System (TCAS) and the Automatic Dependent Surveillance-Broadcast (ADS-B).

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