The DARPA Wideband Adaptive RF Protection programme in the US focuses on enhancing EW technology.(Conceptual image from BAE Systems) Wideband Adaptive RF Protection programme aims to develop wideband adaptive filtering and signal cancellation architectures. BAE Systems is working on two contracts from DARPA under the Wideband Adaptive RF Protection (WARP) programme. The combined value of the two DARPA deals is $5 million. WARP aims to develop wideband adaptive filtering and signal cancellation architectures to protect emerging wideband receivers from interference, the company announced on 7 April. The desired result would be an enhanced capability to function in contested and congested electromagnetic environments where adversaries pose a growing threat.