UAV detection based on wireless communication link via CSI autocorrelation function

With the increasing popularity of unmanned aerial vehicles (UAVs), UAV detection technology has received increasing attention to address security threats. For broad deployment of UAV detection, it is more feasible to perform UAV detection based on existing communication networks than radars. This paper proposes a UAV detection method based on a wireless communication link via a channel state information (CSI) autocorrelation function. The algorithm can be executed in parallel with communication in existing transceivers as no additional signal design requirements and hardware requirements are needed but the CSI, which can be obtained with channel estimation in communication systems. Through experiments, the UAV is successfully detected based on the method proposed in this paper, which verifies its effectiveness.