Mini-Micro Unmanned Aerial Vehicles (UAVs), commonly known as “Drones” are becoming widespread in many fields due to their autonomous capability, availability, and affordability. They are extensively used by security forces for reconnaissance, surveillance, and border security and in many other civil applications, especially in agriculture, construction, cinematography, and transportation. However, this proliferation and ease of use have also opened a gate for hostile usage of drones and turned them into weapons that are widely used as an asymmetrical warfare threat. The need for the protection of military and civilian critical facilities against this novel threat has been the main trigger of the development in Counter Drone System in recent years.  

Counter Drone System is a bottom-layer air defense system and its architectural characteristic is similar to modular and multi-layer air defense systems. Although each air defense system is developed against a set of air threats, their kill-chain mainly consists of three complex sub-systems: Sensor Systems, Command Control System and Defeat Systems (Figure-1). With this characteristic, Counter Drone Systems are so-called Systems of Systems.