The Design Of Small Unmanned Aerial Vehicle Jamming System Under Specific Area

With the development of science and technology,the UAV technology has been an unprecedented development and application,but today,small UAV also has many problems,such as difficult supervision,low safety factor,lack of standard and so on.In order to protect personal and commercial privacy,it is necessary to control,disperse or shoot down the UVA without permission to enter in some special circumstances.Therefore,a design scheme of small UAV jamming system based on moving target detection and wireless communication interference technology is proposed in this paper.A domestic and foreign investigation and research of UAV technology research status is shown in this paper.A large number of theoretical studies on the interference technology of wireless communication are carried out.The system hardware structure and software design scheme are demonstrated,and a complete solution of UAV jamming system is given.The system is mainly composed of host computer and video monitoring module,lower computer interference signal source module and communication module.The host computer uses background subtraction to detect moving objects,and uses Haar + Adaboost algorithm to train samples,and then realizes the detection and recognition of moving targets through video monitoring module.If the UAV is approaching,the upper computer sends the control signal to the STC89C51 controller through serial communication.After receiving the control signal,the STC89C51 chip opens the source of the interference signal,by means of oppressive wireless interference mode on the same frequency to interfere the remote control signal of small UAV,then,the remote control signal can not be correctly received by the receiving module of the small UAV.And finally,the small UAV returns,forced landing or crashes under the action of the incorrect control signal.When the small UAV disappears in the video monitoring picture,the host computer sends different control signals to the lower computer to close the interference signal,so as to achieve the role of small UAV Control.The key step of the scheme is the detection and recognition of moving objects in video monitoring system,and the interference of small UAV remote control signals.The experimental results show that the system design scheme is reasonable and feasible.