Current Situation and Development Demands for a Radar Warning Receiver System

With the development in information technology and the change of air combat mode, Radar Warning Receiver (RWR) have become indispensable electronic warfare equipment for modern fighters. To better understand the airborne RWR system, this study divides the airborne RWR architecture into two stages from the perspective of receiver system. The characteristics and components of the architecture are analyzed. Then, this study elaborates on the signal processing flow of airborne RWR, and classifies the technologies and algorithms related to signal sorting, signal identification and threat assessment. Finally, this study systematically summarizes the challenges and future demand analysis of airborne RWR in complex battlefield environments and in dealing with new radar systems.