Activity Detection and Recognition With Passive Electric Field Sensors

Use of far-field electric field sensors in an outdoor event detection is described. Electric field variations accompany broad variety of physical events, and field signature signals can be used in determination of activities in proximity of the sensor. Perimeter monitoring, moving objects recognition, electric power faults detection are only a few examples of such applications. This article presents development and signal processing for electric field sensor uses in human and animal motion detection and characterization.