The radio directional jammer interferes with the communication of UAV by transmitting the same frequency electromagnetic wave, and radar combined with signal jamming technology can control or destroy UAV. Interference range depends on equipment performance. Countermeasures include suppression and intelligent deception jamming. Drone detection, removal and decoy equipment to ensure air safety.
Radio directed jammer countermeasures of UAVs mainly interfere by transmitting electromagnetic waves of the same frequency as the UAVs communication signal.
The main principles of radio directed jammer counter UAV:
1. Signal interference: The jammer transmits electromagnetic waves with the same frequency and modulation mode as the UAV communication signal, resulting in the UAV unable to normally receive the control signal of the remote control or the status parameters returned by the aircraft. This kind of interference can be used in many ways, such as blocking, deceiving and pressing.
2. Radar detection: Although radar is mainly used to find and track targets, combined with signal jamming technology, it can effectively control or destroy drones. Radar emits electromagnetic waves and receives their echoes to determine the position and motion of the drone.
3. Interference range: The interference range of the jammer is determined by its transmit power, antenna size and shape, and is also affected by the performance of the UAV receiver. In order to improve the jamming effect, it is usually necessary to select equipment with high transmitting power, wide band and strong anti-jamming ability.
4. Technical means: radio countermeasures technology includes two main ways: suppression jamming and intelligent deception jamming. Compaction jamming uses electronic pulses or high-power microwave to cut off the information link between the UAV and the ground remote control, interfere with its navigation module, and force the UAV to lose control; Intelligent spoofing includes GPS spoofing and control command spoofing, which takes over and controls the drone by analyzing radio remote control commands.
These countermeasures can not only effectively block the normal flight and control of drones, but also protect the security of sensitive areas to a certain extent. The use of radio technology to develop UAV detection equipment, UAV directional drive equipment, UAV decoy equipment, for different industries can integrate different products into a system, provide specific solutions for different application scenarios, for the low altitude cast shield guard air security.
