Overview of fully adaptive radar (FAR) for UAV applications

We provide an overview of recent advances that have come about in the area of cognitive radar over the past decade. The area of cognitive radar involves closed loop radar operation to overcome the challenges imposed by harsh environments, difficult targets, and a rapidly shrinking spectrum. In particular this construct is devised to bring to bear all available resources on transmit and receive as well as exploit situational awareness of the operational environment to maximize system performance. The multidisciplinary nature of the field is highlighted and salient advances are presented to motivate the interested reader to delve deeper.