Illegal Broadcast Discovery System Based On Software-defined Radio System

The illegal radio stations have had a great negative social impact on the dissemination of news and public opinion by the party and the government.The crackdown on illegal broadcasting has always been an extremely important supervision work for the radio and television departments and the public security departments.However,with the gradual miniaturization of illegal broadcast transmission equipment,the cost of private radio stations is extremely low and the using is more convenient,and the concealment is also stronger.Faced with the situation of illegal broadcasting in the new situation,the traditional methods of attack have become more difficult to adapt.In order to improve the efficiency of illegal broadcasting,we are in urgent need of a more intelligent,more convenient and more effective illegal broadcasting discovery system for the broadcasting and television management departments.The frequency of illegal broadcasts in the frequency domain is randomly distributed,so it is necessary to find illegal broadcasters through a wider range of hardware and software devices.In this paper,a software-defined radio method is combined with various sensors to design an efficient illegal broadcast discovery system to monitor the radio broadcast signals in a specific frequency range in the airspace,and automatically realize illegal broadcast evidence.Accessibility,illegal broadcast positioning and other auxiliary functions.The system lays a solid technical foundation for timely discovering the location of illegal radio stations,effectively suppressing the spread of illegal broadcasts,and ensuring the network security of wireless broadcast networks.The design system of this paper adopts modular and standardized design ideas.Each system module is interconnected by standardized technical architecture and standard communication methods,which makes the system more scalable and better upgradeable,and provides a friendly and easy-to-understand user interface.To facilitate cross-departmental collaboration.