With the widespread use of unmanned aerial vehicles (UAVs), there are also some security problems caused by the phenomenon of random and black flight of UAVs. The emergence of UAV defense system also makes this series of problems nowhere to be found. The UAV jammer defense system uses wireless signal cracking technology and is composed of search, tracking, jamming and other functions.
Among them, the supervision of the UAV jammer defense system on the low-altitude protection area is mainly composed of radar detection and wireless signal jamming. These two functions can be used independently or in cooperation with the change of the environment to make full use of the performance of the UAV jammer defense system. The UAV jammer defense system uses radar detection to automatically track the "black flying" target, and uses wireless signal jamming to cut off the connection between the "black flying" UAV GPS and the wireless remote controller, so the UAV will lose control and cannot fly. By adopting the mode of frequency signal interference, the equipment of some "Black Flying" UAVs are interfered when receiving signals, and the effect of the UAV defense system is also very obvious. Therefore, the UAV jammer defense system is to interfere with the flight control function of the "black fly" UAV with the corresponding frequency of signal, block the information transmission between it and the operator, so that the UAV can not continue to sail and can only leave or land, so as to achieve the effect of UAV defense, but this does not cause damage to the UAV, which is another defense means.