作者：刘开进
单位：福建星海通信科技有限公司，福建福州 350008
中图分类号：TN962       
文献标识码：A       
文章编号：1006-883X(2018)10-0031-05
收稿日期：2018-09-03

摘要：现有电子产品越来越重视电磁兼容性设计。由于设计复杂，多数产品不能一次性通过电磁兼容测试，需要经优化设计后才能通过。针对北斗船载终端按GB/T10250-2007进行电磁兼容性测试时，在156MHz~165MHz频率范围内出现电磁辐射电平超标问题，本文通过对辐射信号产生机理进行分析，确定电磁辐射源和辐射传导路径，并根据不同辐射源采取相对应的整改措施，保证终端的电磁兼容性能。试验结果表明，采取的电磁整改措施很好地解决了该终端电磁辐射电平超标问题。
关键词：北斗船载终端；电磁兼容性；电磁辐射

Electromagnetic Compatibility Optimization Design of Beidou Shipborne Terminals
LIU Kai-jin
Fujian Xinghai Communication Technology Co., LTD., Fuzhou 350008, China
Abstract: More and more attention is focused on the electromagnetic compatibility design in electronic product design available. Due to the complexity of the design, most products cannot pass the electromagnetic compatibility tests at one time and need more optimization. The electromagnetic compatibility tests of the Beidou carrier terminals are carried out according to GB/T10250-2007, the electromagnetic radiation level exceeds the standard in the frequency range of 156MHz~165MHz. The generation mechanism of the radiation signals is analyzed to determine the electromagnetic radiation sources and radiation paths. The corresponding rectification plans are adopted according to different radiation sources to ensure the electromagnetic compatibility of the terminals. The experimental results show that the electromagnetic rectification plans can solve the problem of excessive electromagnetic radiation level.
Key words: Beidou shipborne terminal; electromagnetic compatibility; electromagnetic radiation

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备注：2018年 第24卷 第10期