ACE Lab

논문 초록 (Abstract)

Background/Objectives: A jamming technique was proposed for frequency hopping signals in commercial drones to raise awareness of secure communication, and it can be used for disabling flight of unauthorized drones. Methods/Statistical analysis: We analyze the characteristics of the communication signal between the drone and the controller of a commercial drone, and show that the communication system is vulnerable to jamming attacks. The wideband sampling, windowing and fast Fourier transform (FFT) are employed to observe the frequency characteristics. RF signal measurement equipment and MATLAB are used to analyze the frequency hopping signal of the commercial drone. Findings: Unmanned aerial vehicles, or drones, have attracted considerable attention due to their versatile availability as military and civilian uses. However, as interest on the drones grows, they may be exposed to various harmful environments such as ambient noise/signal interference or intentional communication disturbance attacks. Therefore, it is essential to design a secure communication system between the drones and the controllers. In this paper, we first analyze the communication signal between a commercial drone and the controller, which is turned out to be a frequency hopping signal. Improvements/Applications: Frequency hopping signals are considered as one of the most secure communication technologies. This paper shows that the hopping signals are not secure and can be damaged by an intentional reactive jammer. Key Words: Commercial Drone, Unmanned aerial vehicles, Frequency hopping spread spectrum, Reactive jammer