Measurements of human body shadowing in a DFL solution

In a special case of radio technique based localization the object or person to be positioned has no active radio device (Device-free Localization). In this solution the objects can be tracked by observing the changes in radio signals of the communicating active radio elements of the detection system. The measurements have highlighted importance in the operation of this solution. Our work aimed at measuring human body shadowing effect in disadvantageous environment (low cost, imprecise radio nodes, indoor environment, etc.) in order to obtain valuable data and knowledge for further modeling and other purposes, and give some suggestions. During this work several measurements have been performed, systematically organized and based on it we were able to construct some rules and conclude our experience regarding the possible applications of DFL in different circumstances. Our results can be successfully used in the further modeling solutions.