车载通信系统电磁兼容仿真设计

EMC Simulation Design of Vehicle-Mounted Communication System

在车载通信系统的设计过程中,电磁兼容仿真是降低电磁干扰和实现系统兼容的重要措施之一。通过对某车载通信系统的分析,建立了相应系统简化模型,依据电磁兼容理论,使用仿真软件EMC Studio进行电磁兼容性分析研究。实际建模中着重天线和线缆端口参数的调整,分析可能出现的问题,提出了如何通过改进设计、减少系统内的干扰和提高系统的兼容性等技术措施,为车载通信总体设计提供了参考。

In the design process of vehicle-mounted communication system, electromagnetic compatibility （EMC） simulation is one of the important means to reduce intra-system electromagnetic interference （EMI） and to realize system compatibility. According to the sufficient analysis of a vehicle-mounted com- munication system, the simplified model of correlative system was set up, and the analysis and research of EMC were carried outby use of the EMC Studio simulation software. Attention was paid to the parameters of antennas and ports in the course of actual modeling, the problemthat the system would occur were ana- lyzed. A proposal to reduce the interference in the system and to increase the system compatibility was put forward by means of improving design. So the EMC simulation can provide the reference for the whole de- sign of vehicle-mounted communication system.