Cognitive Radars: On the Road to Reality: Progress Thus Far and Possibilities for the Future

This article describes some key ideas and applications of cognitive radars, highlighting the limits and the path forward. Cognitive radars are systems based on the perception-action cycle of cognition that senses the environment, learns relevant information from it about the target and the background, and then adapts the radar sensor to optimally satisfy the needs of the mission according to a desired goal. The concept of cognitive radar was originally introduced only for active radar. In this article, we explain how this paradigm can also be applied to passive radar (PR).