一种电磁干扰辐射测试统计理论的研究  

Research on a Statistics Theory of Electromagnetic Interference Radiation Measurement

作　　者：钟冠平[1] 李元密[2] 周婕[3] 

机构地区：[1]厦门出入境检验检疫局,福建厦门361012 [2]厦门大学信息科学与技术学院,福建厦门361005 [3]中国合格评定国家认可委员会,北京100062

出　　处：《厦门大学学报（自然科学版）》2013年第5期613-620,共8页Journal of Xiamen University：Natural Science

基　　金：国家质检总局科技计划项目(2009IK085);福建省自然科学基金项目(2010J01341);国家认可委科研项目(2011CNAS07)

摘　　要：提出了一种实用的电磁干扰(EMI)辐射测试的结果统计技术,采用80%置信度导出统计权衡指标,应用于同一测试系统的期间核查和不同测试系统之间的比对.新统计方法兼顾了测试系统重复性和复现性差异,对差异数据具有弹性制,统计权衡指标反映整体系统的性能.与现有国家标准和认可文件的Z值法、En值法相比,更适合电磁兼容(EMC)领域的检测结果监控,提高检测质量,解决了该领域目前数据处理方法不合适的问题.所述方法经过10多家实验室应用,符合实际需求及国内外相关标准.A statistics theory of electromagnetic interference radiation measurement is proposed. By using the statistics balance index derived from 80% confidence,the measurement data is dealt with for the intermediate checking of the same test system and compared with different systems. The new statistics method gives consideration to the repeatability and reproducibility deviation of test sys terns. It has elasticity for diversity data and the statistics balance index reflects the performance of whole system. It is more suitable and helpful for electro magnetic compatibility（EMC） test quality control than Z-scores method and En-scores method in GB standards and accreditation documents. It solves the problem that the processing method at present is not suitable for EMC test data. This method is used in many laboratories and conforms with the requirement of practical use and relevance standards at home and abroad.

关 键 词：电磁干扰辐射 数据处理 80％置信度 参考基准 

分 类 号：TB973[一般工业技术—计量学]