This paper presents a comprehensive study of the use of software-defined radio (SDR) technology as an effective instrument for detecting radiofrequency activity associated with unmanned aerial vehicles (UAVs). The research is focused not only on the general principles of SDR but also on the practical implementation of algorithms and methods aimed at enhancing the efficiency of UAV signal detection in complex and dynamic radio environments.
In order to satisfy emerging user requirements in advanced services/applications, provided seamlessly, operators have to deploy complex network topologies of heterogeneous nature, where different Radio Access Technologies (RATs) co-exist in single composite network with shared resources. Network operator will have assign the appropriate RAT to perform the respective task, so as to achieve the required quality of service, cost-effectively. In such circumstances, there is a need in vertical handover – mechanism of transferring current connections from one radio access network to another.