Detection of illumination by an attacking high power microwave source, at a vehicle in hostile territory, measures the time for the field strength to breach a minimum level to give the range

摘要

In the system to detect illumination by an attacking high power microwave (HPM) device, the electrical field of the pulses are received irrespective of the direction. On exceeding a minimum level, at least in the upper range of a short time integral of the received field strength of conventional durable radiation, they are measured differentially in both orthogonal polarization directions against each other. The time span between reception of a pulse field to the initial breach of the minimum level is a measure of the range to the attacking source. The field is received at least at two offset sites, for the time difference to be measured on breaching the minimum level.