High Dynamic Range, Wide Bandwidth Electromagnetic Field Threat Detector

Because intentional electromagnetic attacks may be difficult to distinguish from random EMI, real-time detection of threatening fields is advisable for critical facilities. We describe a low-cost approach for configuring a high-power electromagnetic field detector and central controller that can be used for detection of intentional electromagnetic interference (IEMI) and other high peak field events such as electromagnetic pulse (EMP). The information stream can be used to provide threat warning, threat tracking and prediction, threat location, security alerts, technician trouble-shooting alert, and data forensics, as well as providing a deterrent to IEMI attacks.