1. An electromagnetic body scanning system, comprising a measuring system for measuring data of radio waves scattered by a body in two distinct subbands; and a computer system arranged for: constructing a first image of the body using the measured data; generating synthetic scattered data of the body in a frequency range outside the subbands; and constructing a second image of the body using both the measured data and the synthetic data, wherein the step of constructing a first image comprises matching an image to a human model.