| Wireless devices through space coupling of electromagnetic interference is a communications vehicle electromagnetic compatibility design focus on the subject, this article will establish a wireless equipment interference model to analyze the magnitude of this interference, in order to provide a theoretical basis for the design.In this paper, the "11th Five-Year Plan" of weapons and equipment in advance of national defense research projects using fast multiple method of vehicle-mounted antenna characteristics of the electromagnetic compatibility. First on the electromagnetic analysis of numerical algorithm - Moment Method and fast multi-pole method and then use the theory of microwave wireless network equipment and coupling model with rapid method for the multi-polar model of the most important parameters - the same car Antenna coupling, and the original method of moments software provides data were compared with calculated precision requirements At last, the analysis of EMC vehicular multiple antennae system software is developed ,which is based on the thought of Object-Oriented Programming.
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