Sensor fusion: multiple technologies for maximum protection.
Modern protection systems are not based on a single technology, but on sensor fusion: radio frequency (RF) detection, radar and cameras complement each other to create a complete picture of the situation.
• RF detection provides the first warning signals.
• Radar independently confirms position and flight path, even without RF signals.
• Cameras enable visual verification, providing law enforcement with the definitive basis for informed decision-making.
RF Detection: The Heart of Early Warning.
Many drones are controlled and monitored via radio links with their operators, while others (e.g., "kamikaze" or pre-programmed drones) fly autonomously without continuous communication. Therefore, any detection strategy must combine RF detection with additional sensor technologies.
The Aaronia AARTOS system offers:
• Frequency coverage: from 10 MHz to 8 GHz, encompassing the main civilian bands and many military bands.
• Range: detection possible up to 80 km in many scenarios, sufficient to protect large areas such as airports or industrial facilities at an early stage.
• Intelligent signal processing: signals are not only detected but also characterized, located, and partially decoded. Real-time data such as drone and operator position, altitude, speed, and even serial numbers can be extracted and displayed.
• Jamming capabilities: the AARTOS 360° Smart Jammer can precisely disrupt individual frequencies across a very wide range, not just in standard bands. This allows for surgically precise countermeasures against non-standard or military frequencies, rather than indiscriminately blocking entire bands.
“RF detection is the foundation of effective protection,” explains Stephan Karschansky, Managing Director of Aaronia Austria. "Our systems typically provide the earliest warning, long before the drone is visible. This gives law enforcement valuable time to assess the situation and plan appropriate measures."
Radar and cameras: verification stages.
While RF detection provides the initial alert, radar independently verifies position and trajectory, even without a signal. Optical verification using cameras then allows for clear identification. Only with this multi-step verification can security forces make informed decisions regarding countermeasures.
From detection to defense:
Once a drone's position has been precisely located, specific countermeasures can be applied. The AARTOS system identifies both the drone and the likely source of its control signals and transmits this information in real time, for example via an app, directly to security authorities.
Countermeasure Technologies
• Jamming: Selective disruption of control links. The AARTOS 360° intelligent jammer precisely jams any chosen frequency, including non-standard and military bands.
• Spoofing: Manipulation of GPS or navigation signals to mislead drones.
• Takeover: Forcibly assuming control of a drone by technical means.
All countermeasures are subject to strict legal frameworks and can only be used by authorized entities. The goal of modern systems is always to combine effectiveness with minimal side effects.
