Method to determine dielectric permeability of dielectric object

Abstract

The invention belongs to the field of electro technique, particularly to the remote determination of dielectric permeability of dielectric objects. The dielectric object at the background of a reflector is radiated by coherent microwave radiation at N-frequencies to produce a three-dimensional (3D) microwave image of the object and reflector. By utilizing multiple cameras a 3D video image is produced, which then is converted into digital format. The 3D video and 3D microwave images are synchronized and then transferred into a general system of coordinates. The dielectric permeability of the object is determined as follows: where distances Zand Zare between the source of microwave radiation and the reflector, with and without the dielectric object, respectively, and distance Zis between the microwave source and the video image of the dielectric object. This formula allows determining remotely the dielectric permeability of a moving dielectric object of irregular shape.