Counter-Drone Systems
Defense
Counter-drone (C-UAS) systems detect and neutralize unauthorized drones. Understanding these systems helps both defensive planning and evasion research.
Detection Methods
RF Detection
- • Control link signatures
- • Video downlink detection
- • WiFi/Bluetooth scanning
- • Direction finding
Radar Systems
- • Micro-Doppler signatures
- • Rotor blade detection
- • Track formation
- • Range estimation
Electro-Optical
- • Visual camera detection
- • Thermal imaging
- • ML classification
- • Day/night operation
Acoustic
- • Propeller noise detection
- • Audio fingerprinting
- • Limited range
- • Weather dependent
Neutralization Methods
bash
# Soft kill methods:
# - RF jamming (control link, GPS)
# - Protocol exploitation (MAVLink injection)
# - WiFi deauth attacks
# - GPS spoofing (force RTH or landing)
# Hard kill methods:
# - Kinetic (projectiles, nets)
# - High-power microwave
# - Laser systems
# - Counter-drone drones
# DIY detection (research only):
# DroneID detection
git clone https://github.com/RUB-SysSec/DroneSecurity
# Detects DJI drones via DroneID protocol
# RF detection with RTL-SDR
# Monitor 2.4 GHz and 5.8 GHz bands
# Look for drone-specific patternsLegal Restrictions
Jamming and actively neutralizing drones is illegal for private citizens in most
countries. Only authorized entities may deploy C-UAS systems.