Theoretical-experimental investigation of EMC communication systems due to multipoint interference influence

Theoretical-experimental investigation provided in this paper is devoted to analysis of the EMC of communication systems that suffer multipoint interference. These systems are affected by coupling defects of ground radiations and cable, which are noise sources distributed in space. The main goal of the theoretical part is to define the set of interference parameters, reducing the value of the proper EMC criteria. Meanwhile the main goal of the experimental part is to show that those interference parameters can be examined by means of the conventional equipment, utilizing some standard measurement procedures. The description of the approach is based on the examination EMC for several examples of the systems design together with some propositions for measurements procedures for interference values.