Small Unmanned Aerial Vehicles (UAVs) have become a cheap and readily available commodity and the public owns a large number of them for recreational purposes. This poses new challenges to law enforcement and military agencies around the world. Efforts are being made to develop reliable techniques for the detection, localization and identification of small UAVs. In this report, I examine a novel method that utilizes RF waves for this purpose, after describing some of the known techniques.
I examine the method's capabilities using analytical calculations, simulation tools, and measurements carried out in both inside the laboratory and out in the field.
The method proves capable of detecting the carbon-fiber composite propellers used on many UAVs, extracting information like propeller speed and orientation in the process.
The method might one day become an essential part of defense against airborne threats at secure areas like nuclear power plants, airports and military installations.