This scenario captures the scenarios where there is an SDR/other PAW at the fixed node, and no PAW at the drone/other vehicles. For example, the PAW may be passively sensing the signals from the environment (such as the drone control and ) or sending radar signals (Fortem, UWB) to track the drone. The drone may be piloted by AERPAW, or it may be a drone not owned/piloted by AERPAW. 

Example experiments: 1) Use Keysight RF sensors or universal software radio peripherals (USRPs) to capture drone control/payload signals radiated from the drone, detect/classify/localize/track the drone. 2) Use Fortem or UWB radars to detect/classify/localize/track the drone.