Construction requirements of airport drone detection and countermeasure system.
In recent years, with the rapid development of drones, the world's major airports are facing the increasing safety problems of drones. For airports, it is even more urgent to deploy an anti-drone system early warning system. The research and development and deployment of anti-drone technology enables the airport to have low-cost anti-drone technical means, thereby reducing the loss caused by drone intrusion to the airport.
Potential risks at airports: Regardless of whether civilian aircraft or military aircraft, their airport take-off and landing process requires a certain range of "clearance" to protect, so as to ensure the safety of flight. However, in recent years, a large number of drones (UAS) can break into the "clearance" management area of the airport at any time without restraint, causing aviation unsafe incidents and causing huge losses to the aviation industry.
(1) Threats to the safety of aircraft taking off and landing
(2) Delaying normal aircraft take-off and landing
(3) Increased aviation operating costs
(4) Disclosure of privacy and confidentiality
Multi-rotor UAV detection and countermeasure system
The multi-rotor UAV early warning and defense system is a UAV early warning and defense system customized for the airport. The specific technical parameters need to be set according to the actual needs of the airport. It mainly includes four parts: detection and identification subsystem, photoelectric tracking subsystem, radio countermeasure subsystem and net capture countermeasure subsystem.
UAV detection and identification subsystem
It mainly includes: multi-sensor fusion front-end signal acquisition equipment, back-end management early warning equipment, and UAV feature database. The multi-sensor fusion front-end signal acquisition equipment integrates audio detectors, Wifi spectrum detectors, wide-angle cameras, low-light cameras, etc., to realize fusion detection of various sensors, and to scan, detect and warn intruding multi-rotor UAVs. ; Back-end management of early warning equipment, connecting multiple front-end detection equipment through computer network, comprehensive management of defense area, after detecting invading UAV, the system triggers an alarm, and displays the alarm area on the electronic map; UAV feature database, using The typical UAV test flight method identifies the target, and improves the accuracy of early warning by adding target features in the feature database.
Photoelectric tracking subsystem
Including optical and infrared tracking equipment, after receiving the alarm, the photoelectric tracking equipment can be activated to continuously track and locate the intruding drone within the defense range, and determine the three-dimensional coordinates of the intruding drone within the defense range
Photoelectric tracking subsystem
Including optical and infrared tracking equipment, after receiving the alarm, the photoelectric tracking equipment can be activated to continuously track and locate the intruding drone within the defense range, and determine the three-dimensional coordinates of the intruding drone within the defense range.
Radio Countermeasures Subsystem
Mainly includes radiation interference equipment. Radiation interference equipment interferes or controls drones through strong electromagnetic radiation.
The net capture countermeasure system includes
Counter drones and capture nets. In some specific scenarios, when it is impossible to perform radio interference on the invading drone, the counter drone will take off and follow the instructions of the carried mission load to track the intruding drone, and launch the capture net after entering the range. , use the capture net to restrain the invading drone and force it to fall.
Deployment plan
Typical airport deployment schemes mainly include: fixed deployment schemes and mobile deployment schemes.
The fixed deployment plan is a long-term deployment plan, which is suitable for the situation that the scope of airport prevention and control remains basically unchanged for a long time. Usually in the airport planning, the scope of its clearance protection is determined, so except for the airports built in stages, most cases are suitable for fixed deployment schemes. Fixed deployment schemes include single-point deployment schemes and online deployment schemes.
AL ASAR TECH The single-point deployment solution means that the deployed system only includes a set of detection, tracking and countermeasure systems, which is suitable for situations where the protection scope is small and the interception probability is not high. Of course, in the early stage of airport anti-UAV deployment, a single-point deployment scheme can also be selected for experimental deployment, and when mature, it will be converted to an online deployment scheme.
The online deployment solution means that the deployed system includes more than one set of detection, tracking and countermeasure systems, which is suitable for situations where the protection scope is wide and the interception probability is high. According to the current basic technical parameters of the system and the requirements for the protection orientation of the airport clearance, the online deployment scheme must be used if the comprehensive protection within the airport clearance range is to be realized.
The mobile deployment scheme is used for emergency deployment, or when the configuration is temporarily increased according to user needs. The discovery, tracking and countermeasure system in the mobile scheme is vehicle-mounted, which can travel on ordinary paved roads and has certain off-road capabilities. . The in-vehicle system can realize detection, tracking and countermeasures during driving, which is very conducive to rapid response in emergency situations.
The single-point mobile deployment scheme is similar to the single-point fixed deployment scheme, and usually adopts the central deployment method, that is, the defense system is installed in the center of the protected area in order to achieve the maximum expected protection range. The most convenient deployment position close to the center is usually selected for accessibility and obstructions.
The online mobile deployment solution is to deploy multiple vehicle terminals at the same time, which can cover a larger protection range.
