UAV black flight incidents occur frequently, small enough to be used for peeping, large enough to steal state secrets and military secrets, small enough to fall down and injure a person, large enough to cause airport closures, aircraft delays, and stranded passengers, causing serious consequences;
Therefore, the national laws have been continuously improved, and legal documents have been issued one by one to strengthen the control and real-name registration of drones;
Here we do not make any comments on politics, but only analyze the technical means of UAV defense and drone jammer devices;
There are several types of drone control methods:
1. This method of shooting with a gun seems to be more enjoyable. It not only controls it but also destroys it. The damage index is five stars higher, but there is a problem that is a headache. Forget it, so as not to be embarrassed. In addition, you need to find the right time. Once it falls, it is absolutely not allowed to smash people. In addition, you have to remember where you hit, and you need to find it when it falls. This is a headache. How many people are needed? The last question is whose drone is unknown!
2. Catching with a net is similar to shooting a gun, except that the gun hits dots, and the net hits here; it seems that this technology has been improved, the destructive power has been reduced, and the accuracy rate has been improved, but the premise of the problem is that The drone needs to fly lower, and the human station can be higher, and the practicability is lower;
3. UAV jammer is also the current mainstream technology. It blocks the remote control signal of the UAV through high-power transmission so that the UAV loses control. Generally, the UAV can be shot down directly, and the intelligent UAV can also be destroyed by the drone. Human-machine interference interferes with GPS and Beidou signals to prevent drones from returning;
There are two types of drone jammers:
1) Hand-held drone jammer require people to conduct reconnaissance, and it is found that manual intervention through handheld UAV jammers can achieve the control effect; the control distance can generally reach about 2 kilometers;
2) Deployed drone signal jammer The deployed drone jammer is mainly aimed at a relatively large control area, preventing drones from entering the control area and greatly reducing safety risks; it can be completed without a large number of personnel operations; Control distance: 6-8 kilometers can be;
3) The radar-based jammer is a bit too tall. In order to fight a drone, even radar is used. The cost can be imagined. The actual effect is actually no different from the deployed drone jammer. It is to fly into the detection range of the radar and then interfere, I don’t know how the folk radar technology is, anyway, there is one more device and one more fault point, and the main cost is really high;
