| There is very important realistic significance to analyze the electromagnetic compatibility (EMC) of vehicular communication system. The increasingly frequent application of the Engineering needs highly speed and efficiency. The traditional method of moment (MOM) needs very long time to analyze the electromagnetic scattering of electrically large targets, which can't meet the needs of the actual project. It becomes the most urgent problem to analyze the electromagnetic compatibility of vehicular communication system fast and accurately. Some work of the study of the fast algorithms- Fast Multipole Method (FMM) for analysis of electromagnetic compatibility has been done in this paper.Firstly, the basic principles of MOM are reviewed, including the selection of integral equations, the choice of basis function and weight function, the solution of matrix equation and so on.Secondly, the basic principles of FMM and its concrete steps, which includes the aggregation, transfer and disaggregation are represented. And all the formulas are given. It lays a good foundation for the core program.Thirdly, some analysis models of antenna EMC are established. The models include far field model and coupling model. The computation results of several models are presented and are contrasted which shows the correctness and efficiency of FMM.Finally, the "Vehicular Communication System Electromagnetic Compatibility Analysis Software" which using the object-oriented design concept is introduced.The study in this paper provides an effective means for the EMC analysis of the vehicular communication system and offers a strong support for the actual project. |
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