Anti-jam technology: Demystifying the CRPA

摘要

Controlled reception pattern antennas (CRPAs, pronounced "serpers"), adaptive antennas, null-steering antennas, beamforming antennas...You've probably heard of at least one of those terms in any discussion around GPS anti-jam technology for defense. They all describe essentially the same thing: a specialized antenna that helps protect GPS receivers from interference and jamming.